NTN Mathematics and Arithmetic 1 — Questions and Answers
Question 1: An officer works 8-hour shifts, 5 days a week. How many hours does the officer work in a 4-week month?
- 160 hours (Correct answer)
- 140 hours
- 120 hours
- 180 hours
Correct answer: 160 hours
8 hours × 5 days × 4 weeks = 160 hours.
Question 2: A patrol district covers 48 square miles and has 6 patrol zones. How many square miles does each zone cover equally?
- 8 square miles (Correct answer)
- 6 square miles
- 12 square miles
- 10 square miles
Correct answer: 8 square miles
48 ÷ 6 = 8 square miles per zone.
Question 3: A dispatcher received 240 calls in a 12-hour shift. What was the average number of calls per hour?
- 20 calls (Correct answer)
- 24 calls
- 18 calls
- 30 calls
Correct answer: 20 calls
240 ÷ 12 = 20 calls per hour.
Question 4: An officer travels 15 miles to a call at 30 mph. How many minutes does the trip take?
- 30 minutes (Correct answer)
- 15 minutes
- 45 minutes
- 60 minutes
Correct answer: 30 minutes
15 miles ÷ 30 mph = 0.5 hours = 30 minutes.
Question 5: A department has 120 officers. If 15% are assigned to detective units, how many officers are detectives?
- 18 officers (Correct answer)
- 15 officers
- 20 officers
- 12 officers
Correct answer: 18 officers
15% of 120 = 0.15 × 120 = 18 officers.
Question 6: A police vehicle gets 18 miles per gallon. If the gas tank holds 20 gallons, how far can the vehicle travel on a full tank?
- 360 miles (Correct answer)
- 380 miles
- 320 miles
- 400 miles
Correct answer: 360 miles
18 mpg × 20 gallons = 360 miles.
NTN Mathematics and Arithmetic 1
An officer works 8-hour shifts, 5 days a week.
How many hours does the officer work in a 4-week month?