Question

On a morning walk, three persons step off together and their steps measure 40 cm, 42 cm and 45 cm, respectively. The minimum distance each should walk so that each can cover the same distance in complete steps is

Answer 1

Answer:

2520 steps

Step-by-step explanation:

The simple trick for these type of questions is you read the statement...its talking about minimum...then obviously we can take L.C.M

So : -  L.C.M of 40, 42, 45

= 2³ x 3² x 5 x 7 = 2520

Answer 2

ANSWER:-

GIVEN:-

• Measure of steps of three persons = 40, 42, 45cm

SOLUTION:-

Minimum distance covered by each of them in complete steps = LCM of measure of their steps

= LCM of (40, 42, 45)

• 40 = 2×2×2×5

• 42 = 2×3×7

• 45 = 3×3×5

LCM (40, 42, 45) = 2×2×2×3×3×5×7

2520cm