Question

2. Three boys steps off together from the same spot.
Their steps measures 65 cm, 70 cm and 75 cm
respectively: What is the minimum distance each
should cover so that all can cover the distance in
complete steps
7​

Answer 1

For finding minimum distance, we have to find L.C.M of 63, 70, 77.

L.C.M. of 63, 70 and 77 = 7 x 9 x 10 x 11 = 6930 cm.

Therefore, the minimum distance is 6930 cm.

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