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Three parrots A,B and Cwere parroting "hello" once every 3 minutes, 4 minutes and 5 minutes respectively. If three of the starts parroting at 7.00 a.m.,when will they parrots together again ​
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Three parrots A,B and Cwere parroting "hello" once every 3 minutes, 4 minutes and 5 minutes respectively. If three of the starts parroting at 7.00 a.m.,when will they parrots together again

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User Patrick Huy
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1 Answer

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The answer is 8:00 a.m. This is because the answer is simply the LCM of 3, 4, and 5 added to 7:00. The lcm of these numbers is 60, so 1 hr + 7:00 am is 8:00 a.m.
User AdamB
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