Problems on H.C.F and L.C.M
A, B and C start at the same time in the direction to run around a circular stadium. A completes a round in 252 seconds and C in 198 seconds, all starting at the same point. after what time will they

42 minutes 36 econds
26 minutes 18 econds
46 minutes 12 econds
45 minutes

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Problems on H.C.F and L.C.M
The traffic lights at three different road crossings change after every 48 sec., 72 sec and 108 sec.respectively .If they all change simultaneously at 8:20:00 hours,then at what time they again change

9:22:08 hrs
7:25:14 hrs
10:13:17 hrs
8:27:12 hrs

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