Question

Morning walk three persons step off together and their steps measure is 40cm 42 cm and 45cm respectively what is the minimum distance should walk so that each can cover the same distance in complete steps??? here for the minimum distance we are finding LCM so so if there it is ask the maximum maximum distance so what we have to find

Answer 1

Answer:

2520

Step-by-step explanation:

The minimum distance that all 3 should walk is the L.C.M. of 40,42,45

Since

40=2³×5

42=2×3×7

45=3²×5

Therefore,

L.C.M. of 40,42,45=2³×3²×5¹×7¹

=2×2×2×3×3×5×7

=2520