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 ?
A. 4.30 pm
B. 7.00 pm
C. 6.00 pm
D. 5.30 pm
Answer: Option B
Solution (By Examveda Team)
L.C.M. of 40, 50, 60 and 30= 600 minutes
= 10 hours
So, they meet again 10 hours after they start
i.e., 7.00 pm
This Question Belongs to Arithmetic Ability >> Speed Time And Distance
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