Police Math Test Police Math Ratios and Proportions 2

Question 1

A patrol sector has 3 officers for every 2 patrol cars. If 18 officers are on duty, how many patrol cars are available?

Accepted Answer

12

Answer

18 officers ÷ 3 = 6 groups, and 6 × 2 cars = 12 cars.

Question 2

A map uses a scale of 1 inch to 5 miles. Two crime scenes are 3.5 inches apart on the map. What is the real distance?

Accepted Answer

17.5 miles

Answer

3.5 inches × 5 miles per inch = 17.5 miles.

Question 3

Evidence bags and case files are kept in a ratio of 5 to 4. If there are 45 evidence bags, how many case files are there?

Accepted Answer

36

Answer

45 ÷ 5 = 9, and 9 × 4 = 36 case files.

Question 4

A speed-radar sample shows 7 speeders for every 28 vehicles checked. What is this ratio in simplest form?

Accepted Answer

1 to 4

Answer

Dividing both 7 and 28 by 7 gives 1 to 4.

Question 5

If 4 squad cars use 60 gallons of fuel per shift, how much fuel do 6 squad cars use at the same rate?

Accepted Answer

90 gallons

Answer

60 ÷ 4 = 15 gallons each, and 15 × 6 = 90 gallons.

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