Question

On a morning walk 3 person step off together and their steps measure 40cm,42cm and 45cm. What is the minimum distance each should walk so that each can cover same distance and complete the steps?

Answer 1

For the answer we have to find lcm of 40,42,45

40=5*2*2*2

42=7*2*3

455*3*3

Lcm=5*7*2*2*2*3*3

2520 cm they should walk 2520 cm