The speeds of A and B are in the ratio 3:4. A takes 20 minutes more than B to reach a destination. In what time does A reach the destination. `1 1/3hou r s` b. `1 2/3hou r s\ ` c. `2\ hou r s` d. `2 2/3hou r s`

In covering a certain distance, the speeds of A and B are in the ratio of 3:4. A takes 30 minutes more than B to reach the destination. The time taken by A to reach the destination is 1 hou r b. 2 hou r s c. 1 1/2hou r s d. 2 1/2hou 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

In a flight of 6000 km, an aircraft was slowed down due to bad weather. The average speed for the trip was reduced by 400 kmph and the time of flight increased by 30 minutes. The original planned duration of the fight was 2 1/2hou r s b. 3 1/3hou r s c. 4 1/3hou r s d. 5 1/3hou r s

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 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