RRB NTPC · Question 16
Directions: Read the following passage and answer the questions given below: Out of a group of 50 persons, 18 go to work by train and 26 go to work by bus. Eight people go neither by train nor by bus. How many people use both train and bus to go to work? A. 3 B. 2 C. 5 D. 4
Show answer & explanation
Answer: (C) B
Explanation
At least one mode = 50 − 8 = 42, so both = 18 + 26 − 42 = 2.