Ravi's speed of rowing in still water is 6 km/hr. He rows between two points in a river and return to the same starting point. He took 30 minutes more to cover the distance upstream than downstream. If the speed of the stream is 3 km/hr, then the distance between the two points is:

A motorboat can row at the speed of 10 km/h in still water. If the river is flowing at 5 km/h, and it takes 20 hours for a round trip, then the distance between the two places is

In a kilometer race P runs at 10 m/sec, Q runs at 5 m/sec then which of the following statement(s) is/ are correct ?

(A) P wins the race in 100 sec

(B) Q wins the race in 100 sec

(C) P defeats Q by 500 m

(D) Q defeats P by 500 m

Choose the correct answer from the options given below:

A boat goes 24 km upstream in 4 hours and 32 km downstream in 4 hours. The speed of the boat in still water is:

In a 200 meter race, Taniya beats Geetansh by 40 meters or by 10 seconds. The time taken by Taniya to complete the race will be:

In a 100 m race, A gives a start of 10 m to B but still beats B by 5 seconds. If the speed of B is 4.5 km/hr, then the speed of A is:

A can run 22.5 m while B runs 25 m in the same time. In a 1000 m race, by how much distance B beats A?