Symbiosis National Aptitude Test SNAP 2013 Paper

Question : 35 of 150

Marks: +1, -0

Three persons start walking 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 same distance in complete steps?

25 m 20 cm
50 m 40 cm
75 m 60 cm
100 m 80 cm

Validate

Solution:

Answer is LCM of 40, 42, 45 =

2^3 × 3^2 × 5^1 × 7^1

= 2520 cm = 25.2 m.

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