PPAER Police Mathematics and Computation 5

Question 1

Dispatch receives calls at 08:47, 09:15, and 09:52. What is the total elapsed time from the first to the last call?

Accepted Answer

1 hour 5 minutes

Answer

From 08:47 to 09:52 is exactly 1 hour and 5 minutes.

Question 2

A suspect is found with 3 bags of drugs, each weighing 14.5 grams. What is the total weight of the drugs?

Accepted Answer

43.5 grams

Answer

3 × 14.5 = 43.5 grams.

Question 3

In a lineup of 8 suspects, a witness can positively identify 3. What percentage of suspects were identified?

Accepted Answer

37.5%

Answer

3 ÷ 8 = 0.375 = 37.5%.

Question 4

A city has 980 reported crimes in January. In February, crimes decrease by 15%. How many crimes are reported in February?

Accepted Answer

833

Answer

980 × 0.85 = 833 crimes in February.

Question 5

An officer on overtime earns $42 per hour. She works 6.5 hours of overtime. How much overtime pay does she earn?

Accepted Answer

$273

Answer

6.5 × $42 = $273.

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