Data Interpretation Flashcards
6 cards from real Civil Service Numerical Reasoning Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Data Interpretation flashcards as text
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?
Answer: 37.5%
Total = 500 + 750 + 250 + 500 = 2,000. B's proportion = 750/2,000 = 0.375 = 37.5%.
A bar graph shows attendance at 4 events: 320, 280, 450, 350. What is the mean attendance?
Answer: 350
Total = 320 + 280 + 450 + 350 = 1,400. Mean = 1,400 ÷ 4 = 350.
A table shows that errors per 1,000 transactions fell from 8.5 to 5.1. By approximately what percentage did errors fall?
Answer: 40%
Decrease = 3.4. Percentage fall = (3.4 ÷ 8.5) × 100 = 40%.
A chart shows departmental headcount: Admin 35, Operations 80, HR 15, IT 45, Finance 25. What is the total headcount?
Answer: 200
35 + 80 + 15 + 45 + 25 = 200.
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?
Answer: 37.5
Total increase = 150. Number of intervals from Year 1 to Year 5 = 4. Annual increase = 150 ÷ 4 = 37.5.
A table shows outputs: Monday 45, Tuesday 52, Wednesday 48, Thursday 55, Friday 40. What is the median output?
Answer: 48
Arranged in order: 40, 45, 48, 52, 55. The middle value (3rd of 5) is 48.