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.

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?

Work Problem related to speed, distance and time Places A and B are 70km apart on a highway. A car starts from A and another car start from B at the same time. If they travel in the same direction they meet in seven hours but if they travel towards each other meet in one hour. What are their speed.

Two objects of masses 100 g and 200 g are moving along the same line and direction with velocities of 2 m/s and 1 m/s, respectively. They collide and after the collision, the first object moves at a velocity of 1.67 m/s. Determine the velocity of the second object.

Form the pair of linear equations in the following problems and find their solutions (if they exist) by any algebraic method:Places A and B are 100km apart on a highway.One car starts from A and another from B at the same time.If the car travel in the direction at different speeds,they meet in 5 hours.If they travel towared each other,they meet in 1 hour .What are the speeds of the two cars?

A plane electromagnetic wave of frequency 10MH tranvells in free space along the x-direction. At a particular pointy in space and time. E= 2.7 V//m . What is B at this point?

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.

The distance between two poles of the same height standing on the same plane is 100m.The angles of elevation of the tops of the two poles from a point lying on the line joining the base-points of the poles are found to be 30^@ and 60^@ respectively.Find the heights of the poles and the position of the point.

A place of electro-magnetic wave of frequency 25 MHz travell in a free space along x-direction. At a particular point in space and time, E=6.3 hatJbarB v//m . What is bar B at that point?