Question

In a walking competition,three person step off together.Their steps measure 85cm, 90cm and 80 cm respectively. At what distance from the starting point will they again step off together?​

Answer 1

Answer:

Hence, the minimum distance is 12240 cm. Note: You can also directly attempt to find the minimum distance by considering the multiples of 80, 85 and 90, but solving by finding LCM is the best choice.