New Jersey Civil Service Exam Numerical Reasoning and Data 4

Question 1

A government vehicle gets 24 miles per gallon. If gas costs $3.60 per gallon, what is the fuel cost for a 360-mile trip?

Accepted Answer

$54.00

Answer

Gallons needed = 360/24 = 15; cost = 15 × $3.60 = $54.00.

Question 2

An agency's overtime costs increased from $84,000 to $112,000. What is the percent increase?

Accepted Answer

33%

Answer

Increase = $28,000; $28,000/$84,000 × 100 ≈ 33.3%.

Question 3

A scatter plot shows a strong positive correlation between overtime hours and error rates. Which conclusion is best supported?

Accepted Answer

As overtime hours increase, error rates tend to increase

Answer

Correlation shows a tendency, not causation — as one variable increases, the other tends to increase.

Question 4

A civil service exam is scored on a scale of 0–100. Passing requires a minimum of 70. If a candidate answers 56 of 80 questions correctly, do they pass?

Accepted Answer

Yes, with a score of 70%

Answer

56/80 = 0.70 = 70%, which meets the minimum passing score.

Question 5

A table shows annual leave balances: Employee 1=18 days, Employee 2=7 days, Employee 3=22 days, Employee 4=15 days, Employee 5=8 days. What is the average balance?

Accepted Answer

14 days

Answer

Sum = 70; 70/5 = 14 days.

New Jersey Civil Service Exam Practice Test

New Jersey Civil Service Exam Practice Test

New Jersey Civil Service Exam Numerical Reasoning and Data 4