Four people are running around a circular ground from a point on the circumferen

Question

Four people are running around a circular ground from a point on the circumference at 9.00 am. For one round, these four persons take respectively 40, 50, 60 and 30 minutes. At what time will they meet together again ?

Options:

A . 4.30 pm

B . 7.00 pm

C . 6.00 pm

D . 5.30 pm

Answer: Option B

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