Three athletes X, Y and Z start running around a circular track of length 60m from the same point simultaneously in the same direction at speeds of 3 m/s, 5 m/s, and 9 m/s respectively. After how long will they meet for the first time after they started running?

Question

• 45 sec.
• 15 sec.
• 60 sec.
• 30 sec.

Answer 1

60 sec.