Aptitude - Boats and Streams - Discussion
Discussion Forum : Boats and Streams - General Questions (Q.No. 1)
1.
A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.
Answer: Option
Explanation:
Speed downstream = (13 + 4) km/hr = 17 km/hr.
| Time taken to travel 68 km downstream = |  |
68 |  hrs = 4 hrs. |
| 17 |
Discussion:
46 comments Page 3 of 5.
MD ABDUL KHABIR said:
6 years ago
Thank you all for explaining it clearly.
Venky said:
6 years ago
Thanks to all for giving an explanation.
Bhushan roy said:
6 years ago
Thanks for the nice explanation.
Raj said:
9 years ago
Hi, please give me a solution for this question.
"A man can row 8 kms in still water. If in a river flowing at 2 km an hour, it takes him 24 minutes to row to a place and come back, how far of is this place?"
"A man can row 8 kms in still water. If in a river flowing at 2 km an hour, it takes him 24 minutes to row to a place and come back, how far of is this place?"
V!cky said:
10 years ago
Use Speed = Distance /Time formula.
Still in water u+v = 13+4 = 17.
68/17 = 4 km/hr.
Still in water u+v = 13+4 = 17.
68/17 = 4 km/hr.
Manasa said:
1 decade ago
Thanks Balaji.
Geetha said:
1 decade ago
Thanks for your explanation.
Anshu said:
1 decade ago
Total speed during downstream,
Speed = 13kmph + 4 kmph = 17 kmph.
Time = distance / speed = 4 hours.
Hope this helps!
Speed = 13kmph + 4 kmph = 17 kmph.
Time = distance / speed = 4 hours.
Hope this helps!
Arun.D said:
1 decade ago
Speed of boat in still water = 13km/hr.
Speed of the stream = 4km/hr.
Time taken by the boat to go 68 km downstream = ?
Speed of boat in downstream = (13+4)km/hr.
= 17km/hr.
Time = distance/speed.
= 68/17hr.
= 4hr.
Speed of the stream = 4km/hr.
Time taken by the boat to go 68 km downstream = ?
Speed of boat in downstream = (13+4)km/hr.
= 17km/hr.
Time = distance/speed.
= 68/17hr.
= 4hr.
Akash U. said:
1 decade ago
(Total speed)downstream = Speed of boat + Speed of stream.
Time = Distance/speed.
Time = Distance/speed.
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