A man's speed with the current is 15 km / hr and the speed of the current is 2.5 km/ hr. The man's speed against the current is: `8. 5\ k m//h r` b. `\ 9\ k m//h r` c. `10\ k m//h r` d. `12. k m//h r`

The speed of boat in downstream is 15 km/hr and the speed of the current is 2.5 km/hr. The speed of boat against the current is:

If a man rows at the rate of 5 kmph in still water and his rate against the current is 3.5 kmph, then the man's rate along the current is : 4. 25\ k m p h b. 6\ k m p h c. 6. 5\ k m p h d. 8. k m p h\

A car travels the first one third of a certain distant with a speed of 10 km/hr, the next one third distant with a speed of 20 km/hr and the last one third distance with a speed of 60 km/hr. The average speed of the car for the whole journey is 18 k m//h r b. 24 k m//h r c. 30 k m//h r d. 36 k m//h r

A car travels the first one-third of a certain distance with a speed of 10 k m//h r the next one-third distance with a speed of 20 k m//h r and the lat one-third distance with a speed of 60 k m//h r . The average speed of the car for the whole journey is 18 k m//h r b. 24 k m//h r c. 30 k m//h r d. 36 k m//h r

A man on tour travels 160 k m by car at 64 k m//h r and another 160 km by bus at 80 k m//h r . The average speed for the whole journey is 3. 55 k m//h r b. 71. 11 k m//h r c. 36 k m//h r d. 71 k m//h r

A boy rides his bicycle 10 km at an average speed c: 12 km/hr and again travels 12 km at an average speed of 10 km/hr. His average speed for the entire trip is approximately 10. 4 k m//h r b. 10. 8 k m//h r c. 1 k m//h r d. 12. 2 k m//h r

A is faster than B. A and B each walk 24 km. the sum of their speeds is 7 km /hr and the sum of times taken by them is 14 hours. Then As speed is equal to 3k m//h r b. 4 k m//h r c. 5 k m//h r d. 7 k m//h r

A man can row 9 1/3 kmph in still water and finds that it takes him thrice as much time to row up than as to row down the same distance in the river. The speed of the current is : a. 3 1/3 k m//h r b. 3 1/9k m//h r c. 4 2/3k m//h r d. 4 1/2k m//h r