Tag: Aptitude

Aptitude question for maths

Six bells commence tolling together and toll at intervals 2,4,6,8,10 and 12 seconds respectively. In 30 minutes how many times they toll together. a) 4 b) 10 c) 15 d) 16 Solution: L.C.M. of 2,4,6,8,10,12 = 120 So they toll together after every 120 seconds i.e. 2 minutes. So in 30 minutes they toll together …

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