Railways PYQCBT 1 2016

RRB NTPC · Question 54

The three joggers run from place X to place Y in a ratio of 10 : 3 : 20. The ratio of time of arrival of these joggers to the destination will be A. 20 : 3 : 10 B. 3 : 6 : 20 C. 6 : 20 : 3 D. 6 : 3 : 20

  1. A

  2. C

  3. B

  4. D

Show answer & explanation

Answer: (B) C

Explanation

For the same distance, time is inversely proportional to speed: 1/10 : 1/3 : 1/20 = 6 : 20 : 3.