X, Y and Z start at the same time in the same direction to run around a circular ground. X completes a round in 176 seconds, Y in 256 seconds and Z in 312 seconds. All starting at the same point. After what time will they meet again at the starting point?
1678 min , 28 sec
1746 min , 45 sec
1830 min , 24 sec
1956 min , 30 sec.
Solution: L.C.M. of 176, 256 and 312 = 109824.
So, X, Y and Z will again meet at the starting point in 109824 seconds.
i.e., 1830 min. 24 sec.
Back To Top