Multiple choice

In a morning walk, three boys step off together. Their steps measure 80cm, 85cm and 90cm respectively. What minimum distance should each walk so that all can cover the distance in complete steps?

  1. 61200cm

  2. 12240cm

  3. 7200cm

  4. None of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

[Hint: To calculate the required distance, find out the LCM of 80,85 and 90]