three children are taking round of a same park if the children complete 1 round in 4 5 7 min respectively what will be the time when they meet together if the time now is 5 '0' clock
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To get the LCM we have to factorize the numbers,
Factors of 4 = 2×2
Factors of 5 = 5
Factors of 7 = 7
LCM = 2×2×5×7 = 140 Minutes
that is after 2.3 hours they will meet again when they start at 5:00 they will meet at 7:00 approximately
Hence, they will meet together at the starting point after 140 minutes.
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