1) 3 towns P, Q and R are located at the bank of a stream. Distance of Q from P and R is same. Jeet rows from P to Q and Q to P in total 10 hours. Jeet also requires 4 hours to row from P to R. If the stream flows at a consistent rate what will be the ratio of Jeet’s speed in still water and speed of stream?  Published on 17 Mar 17
a. 6:7
b. 5:3
c. 5:2
d. 7:6

2) What will be the boat's speed in still water and speed of river, if the boat takes 12 hours to row 48 km upstream and 8 hours to row the same distance downstream?  Published on 17 Mar 17
a. Boat = 6 km/hr; River = 4 km/hr
b. Boat = 12 km/hr; River = 6 km/hr
c. Boat = 5 km/hr; River = 1 km/hr
d. Boat = 4 km/hr; River = 3 km/hr
e. Boat = 4 km/hr; River = 3 km/hr

3) Raj swims for 6 ½ hours while going 24 km downstream and 36 km upstream. But he takes just 6 hours to swim 36 km downstream and 24 km upstream. At what rate is the river flowing?  Published on 15 Mar 17
a. 6 km/hr
b. 3 km/hr
c. 2 km/hr
d. 4 km/hr

4) Vijay rows a boat 80 km along the stream in 1 hour 20 minutes. Given that his rowing speed in still water is 45 km/hr, in how much time will he cover the same distance against the stream?  Published on 15 Mar 17
a. 4 hours
b. 3 hours 10 minutes
c. 2 hours 40 minutes
d. 2 hours 30 minutes

5) What will be Raj’s speed in still water as well as speed of the river, if he can go downstream at 18 km/hr and upstream at 10 km/hr?  Published on 15 Mar 17
a. Raj = 10 km/hr ; River = 5 km/hr
b. Raj = 14 km/hr ; River = 4 km/hr
c. Raj = 28 km/hr ; River = 8 km/hr
d. Raj = 8 km/hr ; River = 28 km/hr

6) What is speed of Ram in still water and speed of river, if Ram covers 20 km in 1 hour swimming downstream and covers the same distance in 2 h swimming upstream?  Published on 15 Mar 17
a. River = 6 km/hr ; Ram = 14 km/hr
b. River = 8 km/hr ; Ram = 12 km/hr
c. River = 4 km/hr ; Ram = 16 km/hr
d. River = 5 km/hr ; Ram = 15 km/hr

7) Ajay takes 4 hours more while swimming upstream than downstream. His speed in still water is 10 km/hr. The speed of stream is 2 km/hr. What is the distance?  Published on 15 Mar 17
a. 96 km
b. 20 km
c. 80 km
d. 72 km

8) An ocean current flows at a rate of 1.5 km/hr. A shark can swim in still water at the rate 4.5 km/hr. What is the average speed for the entire distance travelled, if the shark swims from India to Australia and comes back?  Published on 10 Mar 17
a. 3.5 km/hr
b. 4 km/hr
c. 3 km/hr
d. 6 km/hr

9) A river flows at speed of 6 km/hr. Surendra swims downstream for some distance in just 12 hours. But he takes 18 hours to return the same distance upstream. How fast is Surendra in still water?  Published on 10 Mar 17
a. 30 km/hr
b. 24 km/hr
c. 12 km/hr
d. 36 km/hr

10) It takes P 1 hour to row to a place and to come back. If the river is running at 2.4 km/hr and P has a speed of 12 km/hr in still water, what distance is the place from P’s starting point?  Published on 10 Mar 17
a. 4.8 km
b. 3.6 km
c. 6.25 km
d. 5.76 km
