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 hours. The velocity of the current is:

1. 1 km/hr

2. 2 km/hr

3. 1.5 km/hr

4. 2.5 km/hr

View Answer

Correct Answer :

2 km/hr

Explanation :
No Explanation available for this question

A boat takes 19 hours for travelling downstream from point A to B and coming back to point C midway between A and B. If the velocity of the stream is 4 kmph and the speed of the boat in still water is 14 kmph, what is the distance between A and B

1. 160 km

2. 180 km

3. 200 km

4. 220 km

View Answer

Correct Answer :

180 km

Explanation :
No Explanation available for this question

A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and speed of the water current respectively

1. 2:1

2. 3:2

3. 8:3

4. Cannot be determined

5. None of these

View Answer

Correct Answer :

8:3

Explanation :
No Explanation available for this question

A man can row 9 and 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. [Central Excise]

1. 3 and 1/3 km/hr

2. 4 and 2/3 km/hr

3. 3 and 1/9 km/hr

4. 14 km/hr

View Answer

Correct Answer :

4 and 2/3 km/hr

Explanation :
No Explanation available for this question

A boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance upstream, it takes 4 hours. What is the speed of the boat in still water

1. 4km/hr

2. 6 km/hr

3. 8km/hr

4. Data Inadequate

View Answer

Correct Answer :

6 km/hr

Explanation :
No Explanation available for this question

A man can row 7 ½ kmph in still water. If in a river running at 1.5 km an hour, it takes him 50 minutes to row to a place and black how far off is the place

1. 3 km

2. 4 km

3. 5 km

4. 6 km

View Answer

Correct Answer :

3 km

Explanation :
No Explanation available for this question

A boatman can row 2 km against the stream in 20 minutes and return in 18 minutes. Find the rate of current

1. 1/3 km/hr

2. 5/3 km/hr

3. 2/3 km/hr

4. None of these

View Answer

Correct Answer :

1/3 km/hr

Explanation :
No Explanation available for this question

A man can row three-quarters of a kilometer against the stream in 11 ¼ minutes. The speed (in km/hr) of the man in still water is:

1. 4 ¼ km/hr

2. 5 km/hr

3. 6 km/hr

4. 7 km/hr

View Answer

Correct Answer :

5 km/hr

Explanation :
No Explanation available for this question

A man can row upstream at 8 kmph and downstream at 13 kmph. The speed of the stream is

1. 2.5 km/hr

2. 4.2 km/hr

3. 5 km/hr

4. 10.5 km/hr

View Answer

Correct Answer :

2.5 km/hr

Explanation :
No Explanation available for this question

If a man can swim downstream at 6 kmph and upstream at 2 kmph, his speed in still water is: [Assistant Grade]

1. 4km/hr

2. 3km/hr

3. 2km/hr

4. 2.5 km/hr

View Answer

Correct Answer :

4km/hr

Explanation :
No Explanation available for this question

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