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

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

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Problems on H.C.F and L.C.M
LCM of 0.12, 0.15, 0.2 and 0.54?

9.2
2.8
5.4
7.8

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