A takes 2 hours more than B to walk `d` km, but /it A doubles his speed, then he can make it in `1` hour less than B. How much time does B require for walking `d` `k m ?` `d/2\ hou r s` b. `3\ hou r s` c. `4\ hou r s` d. `(2d)/3hou r s`

A takes 6 hours more than B to cover a distance of 60 km. But if A doubles his speed, he takes 3 hours less than B to cover the same distance. The speed (in km/hr) of A is:

A takes 3 hours more than B to walk a distance of 30km. But,if A doubles his pace (speed) he is ahead of B by 1(1)/(2) hours.Find the speeds of A and B

A bus left X for point Y. Two hours later a car left point X for Y and arrived at Y at the same time as the bus. If the car and the bus left simultaneously from the opposite ends X and Y towards each other, they would meet 1 1/3 hours after the start. How much time did it take the bus to travel form X to Y? 2 hou r s b. 4 hou r s c. 6 hou r s d. 8 hou r s

An outlet pipe can empty a cistern in 3 hours. In what time will the empty 2/3 part of the cistern? 3 hou r s b. 5 hou r s c. 2 hou r s d. 4 hou r s

While covering a distance of 30km. Ajeet takes 2 hours more than Amit.If Ajeet doubles his speed,he would take 1 hour less than Amit.Find their speeds of walking.

A can do a piece of work in 4 hours, B and C together in 3 hours, and A and C together in 2 hours. How long will B alone take to do it? 8 hou r s b. 10 hou r s c. 12 hou r s d. 24 hou r s

A car takes 15 minutes less to cover a distance of 75 km, if it increases its speed by10 km/hr from its usual speed. How much time would it take to cover a distance of 300 km using this speed? 5 hou r s b. 5 1/2hou r s c. 6 hou r s d. 8 6 1/2 hours

A pipe can fill a tank in 3 hours. There are two outlet pipes from the tank which can empty it in 7 and 10 hours respectively. If all the three pipes are opened simultaneously, then the tank will be filled in 8 hou r s b. 9 hou r s c. 10 hou r s d. 11 hou r s