In 1 minute `3/7` of a bucket is filled. The rest of the bucket can be filled in `7/3m inu t e s` b. `4/3m inu t e s` c. `7/4m inu t e s` d. none of these

In 1 minute (3)/(7) of a bucket is filled.The rest of the bucket can be filled in (7)/(3)m in utes b.(4)/(3)m in utes c.(7)/(4)m in utes d.none of these

A bath can be filled by the cold water pipe in 10 minutes and by the hot water pipe in 15 minutes. A person leaves the bathroom after turning on both the pipes' Ile returns just when the bath should have been full. Finding however, the waste pipe was open, he closes it. In 4 minutes more, the bath is full. In what time will the waste water pipe empty it? 6\ m inu t e s b. \ 8\ m inu t e s c. 9\ m inu t e s d. none of these

A thief running at 8 km/hr is chased by a policeman whose speed is 10 km/hr. If the thief is 100 metres ahead of the policeman, then the time required for the policeman to catch the thief will be 2 m inu t e s b. 3 m inu t e s c. 6 m inu t e s d. 10 m inu t e s

Deepa rides her bike at an average speed of 30 km/hr and reaches her destination in6 hours. Hema covers the same distance in 4 hours. If Deepa increases her average speed by 10 km/hr and Hema increases her average speed by 5 km/hr what would be the difference in their time taken to reach the destination? 40 m inu t e s b. 45 m inu t e s c. 4 m inu t e s d. 1 hou r e. none of these

A runs twice as fast as B and B runs thrice as fast as C. The distance covered by C in 72 minutes, will be covered by A in 12 m inu t e s b. 16 m inu t e s c. 18 m inu t e s d. 24 m inu t e s

In what time would a cistern be filled by three pipes whose diameters are 1 cm,1 1/3 cm and 2 an running together, when the largest alone will fill it in 61 minutes, the amount of water flowing in by each pipe, being proportional to the square of its diameter? 25 m inu t e s b. 30 m inu t e s c. 36 m inu t e s d. 40 m inu t e s

In a bucket is 80% full, then it contains 2 litres more water than I is 66 2/3% full. What is the capacity of the bucket? 10 l i t r e s b. 15 l i t r e s c. 16 2/3l i t r e s d. 20 l i t r e s

If a runner takes as much time in running 20 metres as the car takes in covering 50 metres. The distance covered by the runner during the time the car covers 1 km is 400 m e t r e s b. 40 m e t r e s c. 440 m e t r e s d. none of these

A train running at the speed of 60 kmph crosses a 200 m long platform in 27 seconds. What is the length of the train ? 200 m e t r e s b. 240 m e t r e s c. 250 m e t r e s d. 450 m e t r e s e. none of these

Train A crosses a stationary train B in 50 second and a pole in 20 seconds with the same speed. The length of the train A is 240 metres. What is the length of the stationary train B. 260 m e t r e s b. 300 m e t r e s c. 360 m e t r e s d. Cannot be determined e. none of these