2018 · Q19
Consider the following diagrams: [Four circles, each divided into four quadrants. Circle 1: top-left 14, top-right 36, bottom-left 25, bottom-right 25. Circle 2: top-left 20, top-right 50, bottom-left 20, bottom-right 10. Circle 3: top-left 36, top-right 54, bottom-left 7, bottom-right ?. Circle 4: top-left 30, top-right 30, bottom-left 0, bottom-right 40.] Which one of the following is the missing number in the diagrams given above?
general-mental-abilitynon-verbal-reasoning
- A1
- B2
- C3
- D4
Explanation
Each circle's four quadrant numbers sum to 100: 14+36+25+25 = 100, 20+50+20+10 = 100, and 30+30+0+40 = 100. The third circle must also total 100, so the missing number is 100 − 36 − 54 − 7 = 3. The distractors 1, 2 and 4 do not complete the hundred. Hence the answer is 3.