Problems on H.C.F and L.C.M
A, B and C start running around a circular stadium and complete one round in 27 s, 9 s and 36 s, respectively. In how much time will they meet again at the starting point?

1 minute 48 seconds
3 minute 48 seconds
4 minute 48 seconds
2 minute 48 seconds

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Problems on H.C.F and L.C.M
Find the smallest number of two digits which on being divided by 2, 3, 4 and 5 leaves 0, 1, 2 and 3 as remainder respectively.

65
58
55
61

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

7.8
2.8
9.2
5.4

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