CAT 2020 Slot 3 QA Question 1: Anil, Sunil, and Ravi run along a circular path of length 3 km, starting from the same point at the same time, and going in the clockwise direction. If they run at speeds of 15 km/hr, 10 km/hr, and 8

Question

Anil, Sunil, and Ravi run along a circular path of length 3 km, starting from the same point at the same time, and going in the clockwise direction. If they run at speeds of 15 km/hr, 10 km/hr, and 8

Accepted Answer

Anil and Sunil must both be at the starting point again. So, we compare their individual lap times.
Time taken by Anil for one round = $\dfrac{3}{15} = \dfrac{1}{5}$ hr = 12 minutes
Time taken by Sunil for one round = $\dfrac{3}{10}$ hr = 18 minutes
First common time at the starting point = $	ext{L