Question

On a moring all 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
stance in complete steps
​

Answer 1

Answer:

2520

Step-by-step explanation:

we have to find LCM of those three numbers so we factorise those number

40 = 5×8

5×2×2×2

42 = 3×14

3×7×2

45 = 5×9

5×3×3

common factors= 5×3×2=30

uncommon factors=2×2×7×3=84

30×84=2520

2520 is the minimum distance each should walk so that it can cover the stance in complete steps