Pankaj, Sanjay and Pratima start running around a circular stadium and complete one round in 12 seconds, 8 seconds and 15 seconds respectively. In how much time will they meet again at the starting point ?
For meeting at starting point again, we need to take L.C.M of individual time taken to complete one round.
L.C.M. of 12,15,8 seconds is 120 seconds
Therefore, the answer is 120 seconds ,i.e, 2 minutes.
Option D is the right answer.
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