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 2 of 5.
Prassanna.s said:
1 decade ago
Thanks for giving the correct answer.
V!cky said:
1 decade 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.
ROSHAN said:
1 decade ago
Still water speed + Boat speed = Total speed (down stream).
Time = Distance/Speed.
Time = Distance/Speed.
Praveen said:
10 years ago
Still water means? How it has speed?
Chetan said:
10 years ago
It means speed of boat in still water is 13 km/h.
Laxmidhar said:
10 years ago
Sp of down stream = (13+4) = 17.
Time taken = 68\17 = 4 hr.
Time taken = 68\17 = 4 hr.
Csharad said:
10 years ago
Here any short cut method for this?
Kiruthika said:
9 years ago
Given:
Speed in still water U = 13 km/hr,
Speed of stream V = 4 km/hr,
Distance = 68 km,
Time = ?
Solution:
Time = distance / U+V(downstream speed)
=> 68/17,
=> 4 hour.
Speed in still water U = 13 km/hr,
Speed of stream V = 4 km/hr,
Distance = 68 km,
Time = ?
Solution:
Time = distance / U+V(downstream speed)
=> 68/17,
=> 4 hour.
Sivananda said:
9 years ago
Super explanation @Balaji. Thanks.
Avijit das said:
9 years ago
Appropriate explanation, Thanks to all.
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