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35 Basic Mathematics Practice Questions & Answers

Every Basic Mathematics practice question from the Police Officer Entrance Exam Practice Test, with the correct answer and a short explanation.

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  1. 1. An evidence clerk counts cash seized from three suspects and records it in this table: Suspect | $100 bills | $50 bills | $20 bills Alvarez | 14 | 6 | 9 Brooks | 8 | 3 | 12 Chen | 5 | 10 | 4 How much cash was counted for ALVAREZ only?

    • A.$1,190
    • B.$4,150
    • C.$1,700
    • D.$1,880✓ Answer

    With a denomination table, each cell must be multiplied by the value of its column and only the requested row may be summed. For Alvarez: 14 × $100 = $1,400, 6 × $50 = $300, 9 × $20 = $180, and $1,400 + $300 + $180 = $1,880. $1,190 is the Brooks row, $4,150 is all three rows added together, and $1,700 leaves out the $20 column.

    Ref QB-ZBJKUZSource: Police entrance exam blueprint — Basic Math: cash/denomination table, row-selective total (DART Police & Ocean City PD study-guide sample format)Report a problem with this question

  2. 2. A property report lists each item with a code (S = Stolen, D = Damaged): S — laptop — $725.50 D — window — $180.25 S — 2 bicycles — $410.00 D — mailbox — $96.75 S — toolbox — $132.00 What is the total value of ALL property listed on the report?

    • A.$1,267.50
    • B.$1,447.75
    • C.$1,544.50✓ Answer
    • D.$277.00

    The word ALL means no code filter applies, so every line is added with the decimal points aligned: $725.50 + $180.25 + $410.00 + $96.75 + $132.00 = $1,544.50. $1,267.50 is only the S-coded rows, $277.00 is only the D-coded rows, and $1,447.75 drops the $96.75 line.

    Ref QB-GUCE9ZSource: Police entrance exam blueprint — Basic Math: report-table reading, unfiltered decimal money totalReport a problem with this question

  3. 3. Using the same property report: S — laptop — $725.50 D — window — $180.25 S — 2 bicycles — $410.00 D — mailbox — $96.75 S — toolbox — $132.00 (S = Stolen, D = Damaged.) What is the total value of the STOLEN property only?

    • A.$277.00
    • B.$1,135.50
    • C.$1,267.50✓ Answer
    • D.$1,544.50

    A conditional total requires selecting rows by code first and adding second, so only the three S lines count: $725.50 + $410.00 + $132.00 = $1,267.50. $1,544.50 is every row, $277.00 is the D rows, and $1,135.50 forgets the $132.00 toolbox.

    Ref QB-YB79PYSource: Police entrance exam blueprint — Basic Math: code-filtered (conditional) table totalReport a problem with this question

  4. 4. A judge sets bond at $18,000 for a defendant, and the court requires 10% of that amount to be posted in cash. How much cash must be posted?

    • A.$1,080
    • B.$1,800✓ Answer
    • C.$180
    • D.$18

    Percent of an amount means multiplying the whole by the rate written as a decimal: 10% = 0.10, so $18,000 × 0.10 = $1,800. Because 10% simply moves the decimal point one place left, $180 and $18 are decimal-placement errors, the most commonly graded mistake on this item type.

    Ref QB-FUZ34YSource: Police entrance exam blueprint — Basic Math: percent of an amount (part = whole × rate), decimal placementReport a problem with this question

  5. 5. A precinct logged 400 burglary reports in the first quarter. In the second quarter the count fell 20% from the first-quarter figure, and in the third quarter it rose 10% above the second-quarter figure. How many reports were logged in the third quarter?

    • A.320
    • B.352✓ Answer
    • C.360
    • D.440

    Successive percent changes must be applied one at a time, each to the value that exists at that moment, never added together. First: 400 × 0.80 = 320. Then the 10% increase applies to 320, not to 400: 320 × 1.10 = 352. Chaining the percents additively (−20% + 10% = −10%) gives the trap answer 360.

    Ref QB-XBUWGXSource: Police entrance exam blueprint — Basic Math: successive percent change (apply each change to the new base)Report a problem with this question

  6. 6. A weekly citation tally shows: Officer A 45, Officer B 30, Officer C 60, Officer D 15. What percent of the week's citations were issued by Officer C?

    • A.60%
    • B.40%✓ Answer
    • C.33%
    • D.25%

    A percent of a total requires the whole first, so add every entry: 45 + 30 + 60 + 15 = 150. Then divide the part by the whole and multiply by 100: 60 ÷ 150 = 0.40 = 40%. The choice 60% simply repeats the raw count as if it were already a percent, and 25% comes from dividing by four officers instead of by the total.

    Ref QB-EUNRWWSource: Police entrance exam blueprint — Basic Math: tally-table reading combined with part ÷ whole percentReport a problem with this question

  7. 7. A department pays overtime at 1.5 times an officer's regular hourly rate. An officer whose regular rate is $28.00 per hour works 6 hours of overtime. How much overtime pay is earned?

    • A.$252✓ Answer
    • B.$420
    • C.$168
    • D.$336

    The premium rate must be computed before multiplying by hours, because the 1.5 multiplier applies to the hourly rate, not to the total: $28.00 × 1.5 = $42.00 per overtime hour, and $42.00 × 6 = $252.00. $168 ignores the 1.5 multiplier entirely and $336 uses a 2× multiplier instead of 1.5×.

    Ref QB-WBGKBWSource: Police entrance exam blueprint — Basic Math: multi-step money problem, premium (1.5×) rate then hoursReport a problem with this question

  8. 8. An officer drives a personal vehicle 145 miles on department business. The department reimburses $0.40 per mile. What is the total reimbursement?

    • A.$36.25
    • B.$580.00
    • C.$5.80
    • D.$58.00✓ Answer

    A per-unit rate is applied by multiplying the rate by the number of units: 145 × $0.40 = $58.00. A quick sanity check confirms the decimal point, since $0.40 is a little under half a dollar and 145 miles should therefore yield a little under $72.50, which rules out $5.80 and $580.00 as decimal-placement errors.

    Ref QB-NU5457Source: Police entrance exam blueprint — Basic Math: unit-rate money problem (rate × quantity), decimal placementReport a problem with this question

  9. 9. Nine patrol units are dispatched toward a scene 40 miles away. Seven units reach the scene, while two units are recalled after covering 25% of the distance. How many miles in total did the nine units drive toward the scene?

    • A.300✓ Answer
    • B.290
    • C.360
    • D.280

    The two groups must be computed separately and then added, because they did not travel the same distance: 7 × 40 = 280 miles, and each recalled unit drove 40 × 0.25 = 10 miles, so 2 × 10 = 20 miles. The total is 280 + 20 = 300 miles. 360 assumes all nine completed the trip and 280 ignores the recalled units entirely.

    Ref QB-5CYWH6Source: Police entrance exam blueprint — Basic Math: multi-step composite (multiplication + percent-of + addition)Report a problem with this question

  10. 10. An officer's regular shift runs from 4:00 p.m. to midnight. At 11:40 p.m. the officer is dispatched to a disturbance and does not clear the scene until 1:15 a.m. How much time PAST the end of the regular shift did the officer work?

    • A.35 minutes
    • B.1 hour 15 minutes✓ Answer
    • C.1 hour 35 minutes
    • D.2 hours 15 minutes

    Overtime is measured from the moment the shift ends, not from the dispatch time, so the count starts at midnight and runs to 1:15 a.m., which is 1 hour 15 minutes. The 11:40 p.m. dispatch is a deliberate distractor: measuring from the call gives 1 hour 35 minutes, which is total time on the call rather than time past the shift.

    Ref QB-P94FDASource: Police entrance exam blueprint — Basic Math: elapsed time across midnight, overtime measured from shift endReport a problem with this question

  11. 11. During one shift an officer issued 3 times as many written warnings as citations. The warnings and citations together totaled 96. How many citations did the officer issue?

    • A.48
    • B.24✓ Answer
    • C.72
    • D.32

    Let c be the number of citations; the warnings are 3c, and the two quantities together give the equation c + 3c = 96, so 4c = 96 and c = 24 (with 72 warnings, which checks: 24 + 72 = 96). The trap 32 comes from dividing 96 by 3 instead of by the 4 total parts, and 72 answers for warnings rather than citations.

    Ref QB-7S9MYASource: Police entrance exam blueprint — Basic Math: solving for one unknown (total split into equal parts)Report a problem with this question

  12. 12. A dispatch log shows an officer began a shift at 2200 hours and was relieved at 0630 hours the next morning. How long was the shift?

    • A.9 hours 30 minutes
    • B.15 hours 30 minutes
    • C.8 hours 30 minutes✓ Answer
    • D.7 hours 30 minutes

    When a shift crosses midnight the interval is split in two and the pieces are added: 2200 to 2400 is 2 hours, and 0000 to 0630 is 6 hours 30 minutes, giving 8 hours 30 minutes. Subtracting 0630 from 2200 directly produces the trap 15 hours 30 minutes, because clock time restarts at midnight rather than continuing upward.

    Ref QB-N9R489Source: Police entrance exam blueprint — Basic Math: elapsed time on the 24-hour clock, crossing midnightReport a problem with this question

  13. 13. A police report must record times using the 24-hour (military) clock. An incident occurred at 9:45 p.m. How should that time be written in the report?

    • A.2145✓ Answer
    • B.0945
    • C.1945
    • D.2045

    On the 24-hour clock, times from 1:00 p.m. onward are converted by adding 12 to the hour, so 9 p.m. becomes 9 + 12 = 21 and the minutes are unchanged: 2145. Choosing 0945 keeps the a.m. hour, while 1945 and 2045 come from adding 10 or 11 instead of 12.

    Ref QB-6SW9T9Source: Police entrance exam blueprint — Basic Math: 24-hour (military) time conversion for report writingReport a problem with this question

  14. 14. Responding to a call, a patrol car travels 3 miles on one street, 11 miles on a highway, and 16 miles on a rural road. If the car averages 60 miles per hour for the entire route, how long does the trip take?

    • A.30 minutes✓ Answer
    • B.16 minutes
    • C.1 hour
    • D.45 minutes

    The legs must be added before the rate is applied, because time = total distance ÷ speed: 3 + 11 + 16 = 30 miles, and 30 ÷ 60 = 0.5 hour = 30 minutes. At exactly 60 mph each mile takes one minute, which is the fastest pencil-and-paper check; the choice 16 minutes uses only the final leg.

    Ref QB-R9T4RCSource: Police entrance exam blueprint — Basic Math: rate-time-distance, sum route legs before applying the rateReport a problem with this question

  15. 15. A suspect vehicle traveling 70 mph is 2 miles ahead of a patrol car traveling 80 mph on the same straight highway. If both hold their speeds, how long until the patrol car catches the suspect vehicle?

    • A.24 minutes
    • B.1.5 minutes
    • C.8 minutes
    • D.12 minutes✓ Answer

    A pursuit closes at the difference between the two speeds, not at either car's own speed: 80 − 70 = 10 mph of closing rate. Time = gap ÷ closing speed = 2 ÷ 10 = 0.2 hour, and 0.2 × 60 = 12 minutes. Using the patrol car's full 80 mph gives the trap 1.5 minutes.

    Ref QB-9SY9BDSource: Police entrance exam blueprint — Basic Math: relative (closing) speed in pursuit problemsReport a problem with this question

  16. 16. An officer measures a skid mark as 7 feet 5 inches. The accident report requires the length to be entered in inches only. Given that 12 inches = 1 foot, what figure goes in the report?

    • A.96 inches
    • B.75 inches
    • C.89 inches✓ Answer
    • D.84 inches

    A compound measurement is converted by changing the larger unit and then adding the leftover smaller unit: 7 × 12 = 84 inches, plus the 5 loose inches, equals 89 inches. The choice 84 drops the extra inches and 96 rounds the measurement up to a full 8 feet, which the report would not permit.

    Ref QB-Q9FSJBSource: Police entrance exam blueprint — Basic Math: compound unit conversion (12 in = 1 ft), report in a single unitReport a problem with this question

  17. 17. A seized package is weighed at 3 pounds 9 ounces. The evidence log requires the weight in ounces only. Given that 16 ounces = 1 pound, what weight is logged?

    • A.39 ounces
    • B.64 ounces
    • C.48 ounces
    • D.57 ounces✓ Answer

    Converting down to a single unit means multiplying the pounds by the conversion factor and then adding the loose ounces: 3 × 16 = 48 ounces, plus 9 ounces, equals 57 ounces. The choice 48 forgets the extra ounces and 64 rounds up to a full 4 pounds.

    Ref QB-8SMX5CSource: Police entrance exam blueprint — Basic Math: compound unit conversion (16 oz = 1 lb)Report a problem with this question

  18. 18. An item of evidence weighs 2,500 grams. Using the conversions 1 kilogram = 1,000 grams and 1 kilogram = 2.2 pounds, what is the weight in pounds?

    • A.5.5 pounds✓ Answer
    • B.55 pounds
    • C.1.14 pounds
    • D.2.5 pounds

    A two-step conversion moves through the shared unit: 2,500 ÷ 1,000 = 2.5 kilograms, then 2.5 × 2.2 = 5.5 pounds. Dividing by 2.2 instead of multiplying gives 1.14, the classic wrong-direction error, and 2.5 stops after the first step without converting to pounds.

    Ref QB-T9HS3FSource: Police entrance exam blueprint — Basic Math: metric-to-customary conversion with the factor suppliedReport a problem with this question

  19. 19. Over four shifts an officer averaged 12 calls per shift. The first three shifts produced 10, 14, and 11 calls. How many calls occurred on the fourth shift?

    • A.15
    • B.12
    • C.13✓ Answer
    • D.11

    Because an average is the total divided by the count, the total can be recovered by multiplying: 12 × 4 = 48 calls across all four shifts. The three known shifts account for 10 + 14 + 11 = 35, so the fourth shift had 48 − 35 = 13 calls. Answering 12 assumes the missing value must equal the average, which is only true when every value is identical.

    Ref QB-BSPXNFSource: Police entrance exam blueprint — Basic Math: recovering a missing value from an average (total = average × count)Report a problem with this question

  20. 20. A length of evidence rope measures 8 1/4 feet. An officer cuts off and books 2 5/8 feet of it. How much rope remains?

    • A.6 5/8 feet
    • B.5 5/8 feet✓ Answer
    • C.6 3/8 feet
    • D.5 3/8 feet

    Mixed numbers must share a denominator before subtracting, so 8 1/4 becomes 8 2/8. Since 2/8 is smaller than 5/8, borrow one whole foot: 8 2/8 = 7 10/8. Then 7 10/8 − 2 5/8 = 5 5/8 feet. The trap 6 3/8 comes from subtracting the smaller fraction from the larger one instead of borrowing.

    Ref QB-6XZVM7Source: Police entrance exam blueprint — Basic Math: mixed-number subtraction with common denominators and borrowingReport a problem with this question

  21. 21. A department's staffing plan calls for sworn officers and civilian employees in a 3:5 ratio. If the department has 320 employees in total, how many are sworn officers?

    • A.192
    • B.96
    • C.120✓ Answer
    • D.200

    A 3:5 ratio is part-to-part, so the total is divided into 3 + 5 = 8 shares and officers make up 3 of every 8 employees: 320 ÷ 8 = 40 per share, and 3 × 40 = 120 officers. Treating 3:5 as part-to-whole and taking 3/5 of 320 gives the trap 192, while 200 is the civilian count.

    Ref QB-NEUQ27Source: Police entrance exam blueprint — Basic Math: ratio and proportion, part-to-part vs part-to-wholeReport a problem with this question

  22. 22. A warehouse floor measures 90 feet by 60 feet. Investigators tape off a rectangular section measuring 40 feet by 30 feet. Using Area = length × width, how many square feet of the floor are OUTSIDE the taped-off section?

    • A.5,400 square feet
    • B.3,000 square feet
    • C.1,200 square feet
    • D.4,200 square feet✓ Answer

    A remaining-area problem takes two areas and subtracts: the whole floor is 90 × 60 = 5,400 square feet and the taped section is 40 × 30 = 1,200 square feet, so the area outside it is 5,400 − 1,200 = 4,200 square feet. The listed 1,200 answers for the taped section instead of the area asked for. (Geometry is agency-dependent: CWH-format municipal exams include rectangular area, while the NPOST states it has no geometry problems.)

    Ref QB-5XNJF6Source: Police entrance exam blueprint — Basic Math: rectangular area with a remaining-area step (CWH-format agencies; excluded from the NPOST)Report a problem with this question

  23. 23. A burglary report lists the following stolen items: a television valued at $450, a laptop at $820, a camera at $275, a ring at $1,300, and $155 in cash. What is the total value of the stolen property EXCEPT the ring?

    • A.$1,770
    • B.$1,545
    • C.$1,700✓ Answer
    • D.$3,000

    The word EXCEPT means the ring must be left out, so add only the other four values: $450 + $820 + $275 + $155 = $1,700. $3,000 is the trap of totaling everything including the ring; $1,545 wrongly drops the cash as well; $1,770 comes from a carrying error in the addition.

    Ref QB-MEGDV5Source: Stanard & Associates POST Study Guide (Nov. 2022), Section I Mathematics — official sample type: sum of stolen-property values with a 'total EXCEPT item X' follow-upReport a problem with this question

  24. 24. During one month a precinct received 1,235 calls for service. Of these, 487 were handled by phone and 309 were canceled before a unit arrived. The remaining calls required a patrol unit to be dispatched. How many calls required a dispatch?

    • A.429
    • B.449
    • C.439✓ Answer
    • D.748

    The dispatched calls are what remains after removing both other categories from the total: 1,235 − 487 = 748, then 748 − 309 = 439. Choosing 748 stops after subtracting only the phone-handled calls; 449 and 429 come from borrowing errors in the second subtraction.

    Ref QB-4XA8A5Source: Stanard & Associates POST Study Guide (Nov. 2022), Section I Mathematics — whole-number subtraction with remainders in police call-log scenariosReport a problem with this question

  25. 25. An officer is assigned to inspect 4 school zones every week. There are 52 weeks in the year, but the officer takes 4 weeks of leave and makes no inspections during that time. How many school-zone inspections does the officer make during the year?

    • A.208
    • B.192✓ Answer
    • C.188
    • D.196

    Apply the stated exclusion first: the officer works 52 − 4 = 48 weeks, so the total is 4 × 48 = 192 inspections. 208 (4 × 52) ignores the leave entirely; 196 subtracts only 3 weeks (4 × 49); 188 wrongly subtracts 4 single inspections instead of 4 full weeks of them.

    Ref QB-KE53Q4Source: Stanard & Associates POST Study Guide (Nov. 2022), Section I Mathematics — official sample type: rate × weeks with an excluded vacation periodReport a problem with this question

  26. 26. Detectives recover 32 identical stolen power tools with a combined value of $4,800. What is the average value of each tool?

    • A.$120
    • B.$160
    • C.$145
    • D.$150✓ Answer

    An average value per item is the total value divided by the number of items: $4,800 ÷ 32 = $150. $160 comes from dividing by 30 after misreading the count; $120 divides by 40; $145 is a long-division slip that resolves to a value 32 does not divide into $4,800 to give.

    Ref QB-3XXV44Source: Stanard & Associates POST Study Guide (Nov. 2022), Section I Mathematics — official sample type: average value per recovered item (total ÷ count)Report a problem with this question

  27. 27. An officer must complete 180 miles of directed patrol over a 5-day period. On the first day the officer drives 60 miles. To finish on schedule, how many miles must the officer average on each of the remaining days?

    • A.36
    • B.45
    • C.30✓ Answer
    • D.24

    Only the remaining miles are spread over the remaining days: 180 − 60 = 120 miles left, and 120 ÷ 4 remaining days = 30. The classic trap is dividing by the wrong count: 36 is 180 ÷ 5 (ignoring the miles already driven), 45 is 180 ÷ 4 (forgetting to subtract), and 24 is 120 ÷ 5 (using all five days).

    Ref QB-JESQH3Source: Stanard & Associates POST Study Guide (Nov. 2022), Section I Mathematics — official sample type: average over the REMAINING days after subtracting completed milesReport a problem with this question

  28. 28. A precinct made 240 arrests last year. If 35% of the arrests were for driving under the influence, how many DUI arrests were made?

    • A.96
    • B.84✓ Answer
    • C.72
    • D.120

    Percent of a quantity means multiply the whole by the percent as a decimal: 0.35 × 240 = 84. A quick mental route is 10% of 240 = 24, so 35% = 3 × 24 + 12 = 84. The distractors are the neighboring percents candidates compute by mistake: 72 is 30%, 96 is 40%, and 120 is 50% of 240.

    Ref QB-2XKJX2Source: Stanard & Associates POST Study Guide (Nov. 2022), Section I Mathematics — percent-of-a-quantity applied to arrest statisticsReport a problem with this question

  29. 29. A district recorded 80 vehicle break-ins in one month and 60 in the following month. By what percent did vehicle break-ins decrease from the first month to the second?

    • A.25%✓ Answer
    • B.20%
    • C.75%
    • D.33%

    Percent change is always the amount of change divided by the ORIGINAL value: (80 − 60) ÷ 80 = 20 ÷ 80 = 25%. Choosing 33% divides the change by the new value 60; 20% mistakes the 20-case drop itself for a percent; 75% is 60 ÷ 80, the share that remained rather than the decrease.

    Ref QB-HEEDC2Source: Stanard & Associates POST Study Guide (Nov. 2022), Section I Mathematics — percent decrease in crime statistics (change ÷ original value)Report a problem with this question

  30. 30. At a sobriety checkpoint, 15% of all vehicles stopped received a citation. If 45 vehicles were cited, how many vehicles were stopped in all?

    • A.675
    • B.30
    • C.300✓ Answer
    • D.150

    When a part and its percent are given, recover the whole by dividing the part by the percent: 45 ÷ 0.15 = 300, and the check works, since 15% of 300 is 45. 675 multiplies 45 × 15 instead of dividing; 30 divides 45 by 1.5 through a misplaced decimal; 150 answers as if the rate were 30%.

    Ref QB-3VZQ44Source: Stanard & Associates POST Study Guide (Nov. 2022), Section I Mathematics — recovering the whole from a part and its percentReport a problem with this question

  31. 31. A shift roster lists 48 officers. One-fourth of them are assigned to traffic duty and one-third are assigned to foot patrol. How many officers are left for all other assignments?

    • A.16
    • B.28
    • C.20✓ Answer
    • D.24

    Compute each fraction of the same whole, then subtract both from it: 1/4 of 48 = 12 to traffic, 1/3 of 48 = 16 to foot patrol, so 48 − 12 − 16 = 20 remain. 28 is the number assigned (12 + 16), answering the wrong question; 16 is just the foot-patrol group; 24 comes from assuming half the roster was assigned.

    Ref QB-KC7WP4Source: Stanard & Associates POST Study Guide (Nov. 2022), Section I Mathematics — fraction-of-a-group problems (fractions of the shift roster)Report a problem with this question

  32. 32. During a parade detail, 3 officers can cover 12 city blocks. At the same rate, how many officers are needed to cover 32 blocks?

    • A.16
    • B.12
    • C.8✓ Answer
    • D.4

    Find the unit rate first: 12 blocks ÷ 3 officers = 4 blocks per officer, so 32 blocks need 32 ÷ 4 = 8 officers; the proportion 3/12 = x/32 gives the same result. Choosing 4 stops at the intermediate blocks-per-officer rate; 16 assumes each officer covers only 2 blocks; 12 simply reuses the block figure from the stem.

    Ref QB-4VC3A5Source: Stanard & Associates POST Study Guide (Nov. 2022), Section I Mathematics — simple proportion setups (officers per blocks covered)Report a problem with this question

  33. 33. A patrol car averages 42 miles per hour on a highway detail. How many miles does it travel in 50 minutes?

    • A.50
    • B.21
    • C.35✓ Answer
    • D.42

    Distance = rate × time, but the time must be in hours to match the mph rate: 50 minutes = 50/60 = 5/6 hour, so 42 × 5/6 = 35 miles. 42 assumes a full hour was driven; 21 comes from misplacing the decimal in the conversion (treating 50 minutes as half an hour's worth); 50 inverts the conversion and works the rate backward.

    Ref QB-MCJ8V5Source: Stanard & Associates POST Study Guide (Nov. 2022), Section I Mathematics — distance = rate × time with minutes-to-hours conversionReport a problem with this question

  34. 34. A vehicle pursuit begins at 2245 hours and ends at 0130 hours the next morning. How long did the pursuit last?

    • A.2 hours 45 minutes✓ Answer
    • B.3 hours 15 minutes
    • C.2 hours 15 minutes
    • D.1 hour 45 minutes

    Split the interval at midnight: from 2245 to 2400 is 1 hour 15 minutes, and from 0000 to 0130 is 1 hour 30 minutes, giving 2 hours 45 minutes total. Subtracting the clock readings as ordinary numbers fails because an hour has 60 minutes, not 100 — that error produces 2 hours 15 minutes; 3 hours 15 minutes overcounts to 0200, and 1 hour 45 minutes drops the segment before midnight.

    Ref QB-ZUA3SZSource: Stanard & Associates POST Study Guide (Nov. 2022), Section I Mathematics — elapsed time across midnight on the 24-hour (military) clockReport a problem with this question

  35. 35. A patrol vehicle averages 20 miles per gallon. During one week it is driven 340 miles, and fuel costs $4 per gallon. How much does the week's fuel cost?

    • A.$85
    • B.$68✓ Answer
    • C.$80
    • D.$64

    This is a two-step chain: first convert miles to gallons using the vehicle's rate (340 ÷ 20 = 17 gallons), then multiply by the price (17 × $4 = $68). $85 divides the miles by the price instead of the miles-per-gallon rate; $80 treats the 20 in '20 miles per gallon' as 20 gallons purchased; $64 comes from a division slip that yields 16 gallons.

    Ref QB-HCG8C2Source: Stanard & Associates POST Study Guide (Nov. 2022), Section I Mathematics — multi-step mixed-operation word problems (fuel consumption and cost)Report a problem with this question

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