Question

on a morning walk three persons step off together and their steps measure 40 cm 42 cm and 45 cm what is the minimum distance each should walk so that each can cover the same distance in computer steps​

Answer 1

for this u need to find out the lcm of the given no.s

2|40,42,45

3|20,21,45

5|20,7,15

|4,7,3

therefore their lcm is 2520 cm or 25.20m