Three cyclists with respective speeds of 8 m/sec, 10 m/sec and 20 m/sec are cycling arounda circular track of length 120 metres. If they are cycling in the same direction, after how many seconds do all the three meet for the first time at the starting point?

A .B and C start walking around a circular track.A completes one round in 91/6 seconds B completed in 65/4 sec and C completes in 56/3 sec respectively after how many sec will they meet each other at the starting point again?

A, B and C start running on a circular track simultaneously from the same place of the circular track at the speed of 30 m/s, 60 m/s and 40 m/s respectively in the same direction. The circumference of the track is 1200 m. (i) When will they be together again for the first time ? (ii) When will they be together again for the first time at the starting point?

Two persons A and B are running on a circular track at a speed of 15 m/s and 25 m/s respectively. The circumference of a circular track is 1200 m. If they start at the same place, at the same time and also in the same direction then find after how much time will they meet first? And also find after how much time will they reach at the starting point together.

Arjun and Bhishma run at the speed 30 m/s and 20 m/s respectively on the circular track of 600 m, as its circumference, when would the Arjun and Bhishma meet for the first time at the starting point if they start simultaneously from the same point?

A rectangular field is 150 m x 60 m. Cyclists Joe and Jim start together cycling at speeds 21m/min and 28 m/min respectively. They cycle along the track around the field at the same moment. After how many minutes do they meet again at the starting point?