X and Y run a 3 km race along a circular course of length 300m. Their speeds are in the ratio 3:2. If they start together in the same direction, how many times would the first one pass the other (the start-off is not counted as passing)?
2
3
4
5
Since speeds are in ratio of 3:2, when X completes 3km race ie 10 full rounds of the circular course, Y would have completed 6.66 rounds only (2/3*10). Now, X and Y meet every two rounds. So, by the time X completes, they meet only thrice. Hence, the correct answer is (B).
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