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 boat covers 24 km upstream and 36 km downstream in 6 hours while it covers 36 km upstream and 24 km downstream in 6 1/2 hours. The velocity of the current is 1\ k m//h r b. 1. 5\ k m//h r c. 2\ k m//h r d. 2. k m//h r