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
Answers
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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
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