There is a circular path around a sports field.Sonia takes 18 minutes to drive one round of the field,while Ravi takes 12 minutes for the same.Suppose they both start at the same point and at the same time,and go in the same direction.After how many minutes will they meet again at the starting point?

Three persons walk along a circle and require 10m, 15m and 18 m respectively to complete the circle. They start to walk along the circle from the same point and at the same time. Find after what time they meet again at the starting point for the first time.

Work Problem related to speed, distance and time Two places A and B are at distance 160km . Two cars starting form tha same place and moving in the same direction meet after eight hours. Again moving in the oppoosite directions from A to B. The cars meet each other after one hour. Find the speed of the cars.