NTN Police Police Work Mathematics 2

Question 1

Skid marks at a collision scene measure 120 feet.
Using the skid mark formula S = √(30 × d × f) where f = 0.70 (friction coefficient for a wet road), what is the approximate pre-braking speed of the vehicle?

Accepted Answer

45 mph

Answer

50 mph

Answer

60 mph

Answer

35 mph

Question 2

An officer works a 10-hour shift. They spend 35% of the shift on patrol, 25% on calls, 20% on report writing, and 10% on court time. How many hours are spent on patrol?

Accepted Answer

3.5 hours

Answer

3 hours

Answer

4 hours

Answer

2.5 hours

Question 3

A department has a 1:500 officer-to-resident ratio goal. If a city has 125,000 residents, how many officers does the department need to meet this goal?

Accepted Answer

250

Answer

200

Answer

225

Answer

275

Question 4

Officers are distributing patrol hours across three precincts based on call volume. Precinct A handles 40% of calls, Precinct B handles 35%, and Precinct C handles 25%. If the department allocates 2,000 patrol hours per month, how many hours go to Precinct B?

Accepted Answer

700 hours

Answer

800 hours

Answer

900 hours

Answer

500 hours

Question 5

An officer drives 12 miles to a call at an average speed of 48 mph (with emergency lights). How many minutes does the response take?

Accepted Answer

15 minutes

Answer

12 minutes

Answer

18 minutes

Answer

10 minutes

Question 6

A department seized 3.5 pounds of marijuana during a search. There are 453.6 grams in one pound. Approximately how many grams of marijuana were seized?

Accepted Answer

1,588 grams

Answer

1,350 grams

Answer

1,200 grams

Answer

1,750 grams