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?

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

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Problems on H.C.F and L.C.M
What is the side of the largest possible square brick which can be paved on the floor of a room 4m 96cm long and 4m 3cm broad?

25 cm
16 cm
9 cm
31 cm

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