Question

Three cyclists started from A to reach B at same time. If the ratio of their speeds are 2 : 3 : 5, then the ratio of time taken by them to reach B will be:
A) 5 : 3 : 2
B) 15 : 10 : 6
C) 15 : 9 : 6
D) 6 : 9 : 15

Answer 1

Answer:b

Step-by-step explanation:

Let speeds be 2x 3x 5x

Fixed distance be y

Time taken by each person = distance/ speed

1st person = y/2x

2nd person = y/3x

3rd person = y/5x

Ratio of time taken=

y/2x :y/3x: y/5x

=1/2:1/3:1/5

=15/30:10/30:6/30

=15:10:6