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Question

Swapnil, Aakash and Vinay begin to jog around a circular stadium. They complete their revolutions in 36 seconds, 48 seconds and 42 seconds respectively. After how many seconds will they be together at the starting point?

  • 504 seconds
  • 940 seconds
  • 1008 seconds
  • 470 seconds
  • None of these
Answer- C

Do LCM for 36 sec, 48 sec and 42 sec

= 1008 sec

After 1008 seconds, they will be together at the starting point.


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