Police Math Ratios and Proportions Questions and Answers

Question 1

An evidence room contains confiscated items. The ratio of illegal firearms to narcotics packages is 7:5. If there are a total of 156 items, how many are illegal firearms?

Accepted Answer

91

Answer

65

Answer

78

Answer

105

Question 2

A police department has a ratio of patrol officers to detectives of 9:2. If the department employs 110 officers in total between these two roles, how many more patrol officers are there than detectives?

Accepted Answer

68

Answer

22

Answer

70

Answer

90

Question 3

A map used for patrol routes has a scale where 2 inches represent 5 miles. If the distance between two points on the map is 9 inches, what is the actual distance in miles?

Accepted Answer

22.5 miles

Answer

18 miles

Answer

3.6 miles

Answer

45 miles

Question 4

At a sobriety checkpoint, officers find that the ratio of sober drivers to drivers under the influence is 15:1. Over the course of a night, 450 sober drivers pass through. How many drivers were found to be under the influence?

Accepted Answer

30

Answer

15

Answer

45

Answer

25

Question 5

Which of the following ratios is NOT equivalent to 4:6?

Accepted Answer

16:20

Answer

2:3

Answer

8:12

Answer

12:18

Question 6

A police academy has 36 recruits. The ratio of male to female recruits is 7:2. After 4 male recruits drop out, what is the new ratio of male to female recruits?

Accepted Answer

28:8

Answer

7:2

Answer

32:8

Answer

7:1