Question
If a boat travels 35 km more in downstream than in
upstream in 5 hr and if the speed of the boat in still water is 25 km/hr, then find the distance travelled by boat in downstream in 4 hr?Solution
S is the speed of boat in still water = 25 km/hr
Speed of upstream = 25 + x
Speed in downstream = 25 - x
Distance in downstream - distance in upstream =35 km {given}
According to question,
(25 + x) times; 5 - (25 - x) times; 5 = 35
(25 + x) - (25 - x) = 7
2x = 7
x = 3.5 km/hr
Distance in downstream in 4 hr
D = (25 + 3.5) times; 4
D = 28.5 times; 4
D = 114 km
More Boats and streams Questions
In the following question select the answer pair that expresses a relationship most similar to that expressed in the capitalised pair.
AFFECTIO...
Select the most appropriate meaning of the idiom:
"To throw in the towel"
The act of ending the employment of a worker or group of workers
The longevity (A) of the product is also assured (B) as the gold is plated (C) rather than applied as a coated (D) .
...VirulentÂ
Blend
Find the appropriate answer.
...Burrow
The Cabinet members and those invited to attend the special session were taken into confidence (A) about the threatening (B) document letter that the p...
Choose the incorrectly spelt word.
Relevant for Exams:
