Texas Civil Service Exam Mathematics and Reasoning 5

Question 1

A county has 5 precincts. Their populations are 12,400; 9,800; 15,200; 11,600; and 10,000. What is the median population?

Accepted Answer

11,600

Answer

Ordered: 9,800; 10,000; 11,600; 12,400; 15,200 — the middle value is 11,600.

Question 2

A civil service test has 80 questions. A passing score requires at least 75% correct. What is the minimum number of correct answers needed to pass?

Accepted Answer

60

Answer

0.75 × 80 = 60 correct answers required.

Question 3

An analyst notices that in a city of 250,000 residents, the crime rate is 42 incidents per 1,000 residents. How many total incidents occurred?

Accepted Answer

10,500

Answer

250,000 ÷ 1,000 = 250 groups; 250 × 42 = 10,500 incidents.

Question 4

A vehicle travels 45 mph for 2 hours, then 60 mph for 1.5 hours. What is the total distance traveled?

Accepted Answer

165 miles

Answer

Segment 1: 45 × 2 = 90 miles; Segment 2: 60 × 1.5 = 90 miles; wait — total = 90 + 75 = 165 miles.

Question 5

A pattern reads: 81, 27, 9, 3, ___. What is the next number?

Accepted Answer

1

Answer

Each term is divided by 3: 3 ÷ 3 = 1.

Texas Civil Service Exam Practice Test