Question

Ramesh, Suresh, and Lila start running around a circular track and complete one round in 32 seconds, 40 seconds, and 50 seconds respectively. In how many seconds will the three meet at the starting point if they all have started running at the same time?
1. 600
2. 1000
3. 700 sec
4. 800 sec
5. None

Answer 1

Correct Answer - Option 4 : 800 sec

Given:

Ramesh can complete the one round in = 32 seconds

Suresh can complete the one round in = 40 seconds

Lila can complete the one round in = 50 seconds

Calculation:

Three will meet at starting point = LCM (32, 40, 50)

⇒ 800 seconds

∴ The required result will be 800 seconds.