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Question

Two person A and B start running from same initial point and in same direction along a circular path with speed of 5 km/hr and 2 km/hr respectively. If the length of circular path is 24 km, after what time they will meet again?


Correct Answer
A
8 hr
Your Answer
B
6 hr
Your Answer
C
3 hr
Your Answer
D
2 hr

Solution

The correct option is A 8 hr

Speed of A w.r.t. B=vAvB
=(52) km/hr
=3 km/hr
To meet again, A has to cover distance equal to the length of circular path with respect to B.
SA/B=24 km
Time taken t=SA/BvA/B=243=8 hr

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