Question

A,B and C start at the same time in the same direction to run around a circular stadium. A completes round in 252 seconds, B in 308 seconds and C in 198 seconds ,all starting form same point .After what time will they meet again at starting point ?

Answer 1

2772 seconds

Answer 2

can i explain how ??plz

Answer 3

take LCM of all 3 numbers

Answer 4

got it?

Answer 5

Assume they met at time x. Then x should be a common multiplier of the 3 numbers since all 3 runners have to run a COMPLETE circular stadium.

Answer 6

but the maximum time so that all can again meet at the starting point will be maximum time by the any one of them right .

Answer 7

Nope . It is not necessary .

Answer 8

okay i got it