A boat takes a total of 6 hours to row 8 kms downstream and to return back to the starting point. If speed of the boat is 3 kmph, for how much time was the boat moving downstream

1.  1 hr

2.  2 hr

3.  3 hr

4.  4 hr

5.  5 hr  

View Answer  
5
Correct Answer :

2 hr


Explanation :
No Explanation available for this question

A man rows for 3 hrs downstream and then for 3 hrs upstream. In this whole process he covers a distance of 12 kms. If the speed of the stream is 1 kmph, for how much more time will he have to row upstream to reach the starting point

1.  6 hr

2.  5 hr

3.  4 hr

4.   3 hr

5.  2 hr

View Answer  
5
Correct Answer :

6 hr


Explanation :
No Explanation available for this question

A boat travels from points X to point Y upstream and returns from point X downstream. If the round trip takes the boat 5 hours and the distance between point X and point Y is 120 kms and the speed of the stream is 10 km/hr, how long did the upstream journey take

1.  2.5 hrs

2.  3 hrs

3.   3.5 hrs

4.  4 hrs

5.  4.5 hrs

View Answer  
5
Correct Answer :

3 hrs


Explanation :
No Explanation available for this question

A man can row 50 km upstream and 72 km downstream in 9 hours. He can also row 70 km upstream and 90 km downstream in 12 hours. Find the rate of current.

1.  2 kmph

2.  3 kmph

3.   4 kmph

4.  6 kmph

5.  8 kmph

View Answer  
5
Correct Answer :

4 kmph


Explanation :
No Explanation available for this question

I travel for 2 hours downstream and then for 2 hours upstream. I am yet 16 kms away from the starting point. Find the speed of the flow of the river.

1.  8 kmph

2.  6 kmph

3.  5 kmph

4.  4 kmph

5.   cannot be determined

View Answer  
5
Correct Answer :

4 kmph


Explanation :
No Explanation available for this question

A car travels the first one-third of a certain distance with a speed of 10 kmph, the next one-third of the distance with a speed of 20 kmph and the last one-third distance at 60 kmph. Find the average speed of the car for the whole journey.

1.   18 kmph

2.   20 kmph

3.  25 kmph

4.  30 kmph

5.  40 kmph  

View Answer  
5
Correct Answer :

18 kmph


Explanation :
No Explanation available for this question

A car travels the first one-third of the total time taken to cover a distance at a speed of 10 kmph, the next one-third of time at a speed of 20 kmph and the last one-third time at 60 kmph. Find the average speed of the car for the whole journey.  

1.   18 kmph

2.  20 kmph

3.  25 kmph

4.  30 kmph

5.  40 kmph  

View Answer  
5
Correct Answer :

30 kmph


Explanation :
No Explanation available for this question

A person travels from P to Q at a speed of 40 kmph. By what percent should he increase his speed on the return journey so that his average speed for the round trip is 48 kmph

1.  40%

2.  50%

3.  60%

4.  75%

5.  80%  

View Answer  
5
Correct Answer :

50\%


Explanation :
No Explanation available for this question

The average speed of a bus, excluding all stoppage time is 54 kmph and including all stoppage time is 45 kmph. Find the duration (in minutes) that the bus stops every hour.

1.  6 min

2.  10 min

3.   12 min

4.  15 min

5.   20 min  

View Answer  
5
Correct Answer :

10 min


Explanation :
No Explanation available for this question

A car first travels uphill at a speed of54 kmph and then downhill at a speed of 72 kmph such that the average speeds for the entire journey is 63 kmph. Find the ratio of the uphill distance to the downhill distance.

1.  1 : 1

2.  6 : 7

3.   7 : 8

4.  3 : 4

5.  cannot be determined  

View Answer  
5
Correct Answer :

3 : 4


Explanation :
No Explanation available for this question
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