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On a morning walk, three persons step off together and their steps measure 40 cm, 42 cm and 45 cm, respectively. What is the minimum distance each should walk so that each can cover the same distance in complete steps?

Answers (1)

We need to find the L.C.M of 40, 42 and 45 cm to get the required minimum distance.

40 = 2x2x2x5

42 = 2x3x7

45 = 3x3x5

L.C.M. = 2x3x5x2x2x3x7 = 2520

Posted by

Ravindra Pindel

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