A man rows upstream 36 km and downstream 48 km taking 6 hours each time. The speed of the current is

• 0.5 kmph

• 2 kmph

• 1 kmph

• 1 kmph

22.

A farmer travelled a distance of 61 km in 9 hours. He travelled partly on foot at the rate 4 kmph and partly on bicycle at the rate 9 kmph. The distance travelled on foot is

• 16 km

• 14 km

• 17 km

• 17 km

The distance between 2 places R and S is 42 km. Anita starts from R with a uniform speed of 4 km/h towards S and at the same time Romita starts from S towards R also with some uniform speed. They meet each other after 6 hours. The speed of Romita is

• 18 km/hr

• 3 km/hr

• 20 km/hr

• 20 km/hr

A boat takes half time in moving a certain distance downstream than upstream. The ratio of the speed of the boat in still water and that of the current is

• 2 : 1

• 1 : 2

• 4 : 3

• 4 : 3

A man travelled a distance of 80 km in 7 hrs partly on foot at the rate of 8 km per hour and partly on bicycle at 16 km per hour. The distance travelled on the foot is

• 32 km

• 48 km

• 36 km

• 36 km

A train 300 m long is running with a speed of 54 km/hr. In what time will it cross a telephone pole?

• 20 seconds

• 15 seconds

• 17 seconds

• 17 seconds

A man is walking at a speed of 10 kmph. After every km, he takes a rest for 5 minutes. How much time will he take to cover a distance of 5 km?

• 60 minutes

• 50 minutes

• 40 minutes

• 40 minutes

A car driver leaves Bangalore at 8.30 A.M. and expects to reach a place 300 km from Bangalore at 12.30 P.M. At 10.30 he finds that he has covered only 40% of the distance. By how much he has to increase the speed of the car in order to keep up his schedule?

• 45 km/hr

• 40 km/hr

• 35 km/hr

• 35 km/hr

If a distance of 50 m is covered in 1 minute, that 90 m in 2 minutes and 130 m in 3 minutes find the distance covered in 15 mintues.

• 610 m

• 750 m

• 1000 m

• 1000 m

A train goes from Ballygunge to Sealdah at an average speed of 20 km/hour and comes back at an average speed of 30 km/hour. The average speed of the train for the whole journey is

• 27 km/hr

• 26 km/hr

• 25 km/hr

• 25 km/hr