How Much Distance Cover by Each Men? If

Three men step off together from the same spot, Their steps measures 63 cm, 70 cm and 77 cm respectively. The minimum distance each should cover so that all can cover the distance in complete step is

  1. 9630 cm
  2. 9360 cm
  3. 6930 cm
  4. 6950 cm
Manish Listener Asked on 14th July 2015 in Maths.
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1 Answer(s)

Answer: (3) 6930 cm
Explanation:-
The length of their steps = 63 cm, 70 cm and 77 cm
The minimum distance each should cover so that all can cover the distance in complete step = L C M of 63, 70 and 77
Factors of 63 = 3 x 3 x 7
Factors of 70 = 2 x 5 x 7
Factors of 77 = 11 x 7
L C M = 2 x 3  x 3 x 5  x 7 x 11 = 6930
Hence, the answer is (3) 6930 cm.

Anurag Mishra Professor Answered on 14th July 2015.
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