Civil Service Numerical Reasoning Test Data Interpretation 4

Question 1

A table shows four products and their units sold: A: 500; B: 750; C: 250; D: 500. What proportion of sales does Product B represent?

Accepted Answer

37.5%

Answer

Total = 500 + 750 + 250 + 500 = 2,000. B's proportion = 750/2,000 = 0.375 = 37.5%.

Question 2

A bar graph shows attendance at 4 events: 320, 280, 450, 350. What is the mean attendance?

Accepted Answer

350

Answer

Total = 320 + 280 + 450 + 350 = 1,400. Mean = 1,400 ÷ 4 = 350.

Question 3

A table shows that errors per 1,000 transactions fell from 8.5 to 5.1. By approximately what percentage did errors fall?

Accepted Answer

40%

Answer

Decrease = 3.4. Percentage fall = (3.4 ÷ 8.5) × 100 = 40%.

Question 4

A chart shows departmental headcount: Admin 35, Operations 80, HR 15, IT 45, Finance 25. What is the total headcount?

Accepted Answer

200

Answer

35 + 80 + 15 + 45 + 25 = 200.

Question 5

A line graph shows a value starting at 400 in Year 1 and ending at 550 in Year 5. Assuming constant annual increase, how much does it increase each year?

Accepted Answer

37.5

Answer

Total increase = 150. Number of intervals from Year 1 to Year 5 = 4. Annual increase = 150 ÷ 4 = 37.5.

Civil Service Numerical Reasoning Practice Test

Civil Service Numerical Reasoning Practice Test

Civil Service Numerical Reasoning Test Data Interpretation 4