P, Q and R start at the same time and in the same direction to run around a circular stadium. P completes a round in 252 seconds, Q in 308 seconds and R in 198 seconds, ail starting at the same point. After what time will they meet again at the starting point?

P, Q and R start at the same time and in the same direction to run aro

1.	P, Q and R start at the same time and in the same direction to run around a circular stadium. P completes a round in 252 seconds, Q in 308 seconds and R in 198 seconds, ail starting at the same point. After what time will they meet again at the starting point?
A.	26 mins 18 sees
B.	42 mins 36 sees
C.	46 mins 12 sees
D.	45 mins
Answer» D. 45 mins

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P, Q and R start at the same time and in the same direction to run around a circular stadium. P completes a round in 252 seconds, Q in 308 seconds and R in 198 seconds, ail starting at the same point. After what time will they meet again at the starting point?

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