operations on numbers (6.papers)

hcf and lcm (5.papers)

averages (8.papers)

problems on ages (9.papers)

percentage (4.papers)

profit and loss (4.papers)

ratio and proportion (5.papers)

chain rule (5.papers)

time and work (4.papers)

pipes and cisterns (5.papers)

time and distance (5.papers)

problems on trains (8.papers)

boats and streams (7.papers)

partnership (6.papers)

simple interest (4.papers)

compound interest (2.papers)

permutation and combination (3.papers)

clock (2.papers)

calendar (3.papers)

1

A man car row 16 km/hr down stream and 10 km/hr. up stream. What is the velocity of current ?

3 km/hr

4 km/hr

13 km/hr

6 km/hr

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3

A boat goes to 40 km, upstream in 8 hours and down stream in 5 hours. What is the speed of boat in still water ?

5 km/hr

6 km/hr

6.5 km/hr

7.5 km/hr

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4

A man can row 15 km/hr in still water. It takes him twice as long row up as to row down the river. Find the rate of stream.

3 km/hr

3.5 km/hr

4 km/hr

5 km/hr

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6

A man can row 15 km/hr in still water. If in a river running at 3 km/hr, it takes him 1 hour to row to a place and back, how far off is the place ?

6 km

6.5 km

7.2 km

8.4 km

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10

A boatman goes 6 km against the current of the stream in 2 hours and goes 2 km along the current in 30 minutes. How long will it take to go 7 km in stationary water ?

1 hour

3 hours

5 hours

2 hours

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12

A boy takes thrice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat (in still water) and the stream is :

1 : 2

2 : 1

2 : 5

3 : 7

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14

A man's speed with the current is 22 km/hr and the speed of the current is 4 km/hr. the man's speed against the current is :

30 km/hr

22 km/hr

14 km/hr

10 km/hr

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15

A boat can travel with a speed of 30 km/hr in still water. If the speed of the stream is 5 km/hr, find the time taken by the boat to go 140 km downstream.

4 hours

5 hours

6 hours

7 hours

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18

A man swims some distance upstream at 12 km/hr. and the same distance downstream at 20 km/hr. totally in 8 hours. What is the distance in one direction ?

40 km

50 km

80 km

60 km

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19

A man can row 20 kmph in still water and finds that it takes him 4 times as much time to row up than as to row down the same distance in the river. The speed of the current is :

12 kmph

14 kmph

15 kmph

20 kmph

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20

A boat covers a certain distance downstream in 4 hours, while it comes back in 6 hours. If the speed of the stream be 2 kmph, what is the speed of the boat in still water ?

8 kmph

10 kmph

12 kmph

16 kmph

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