Study the following diagram and answer questions based on it the diagram represents the likes of kids of a class. Figure The ratio of kids who like only Mars to those who like all the three is A. 7/5 B. 7/8 C. 7/6 D. 14/13

Railways PYQCBT 1 2016

RRB NTPC · Question 19

Study the following diagram and answer questions based on it the diagram represents the likes of kids of a class.

The ratio of kids who like only Mars to those who like all the three is A. 7/5 B. 7/8 C. 7/6 D. 14/13

Show answer & explanation

Answer: (A) D

Explanation

In the diagram, Jupiter's circle lies inside Mars' circle and Mercury's circle overlaps both. Kids who like only Mars are in the region of Mars alone: 14. Kids who like all three are in the common region of the three circles: 13. Ratio = 14/13.