Asked by Vivek
A steamer goes downstream and covers the distance between two ports in 4 hours while it covers the same distance upstream in 5 hours.If the speed of the stream is 2 km/h.Find the speed of steamer in still water.Check your solution.
Answers
Answered by
Damon
speed down = v+2
speed up = v-2
5 (v-2) = 4 (v+2)
5 v - 10 = 4 v + 8
v = 18
speed up = v-2
5 (v-2) = 4 (v+2)
5 v - 10 = 4 v + 8
v = 18
Answered by
Saswad
Check: The speed of the steamer in still water = 18 km/h
The speed downstream=(18+2)km/h
=20km/h
The speed upstream=(18-2)km/h
=16km/h
The distance covered in 4 hours while going downstream =(20×4)km
=80 km
The distance covered in 5 hours while going upstream=(16×5)km
=80 km
Thus,the both distances are equal.
The speed downstream=(18+2)km/h
=20km/h
The speed upstream=(18-2)km/h
=16km/h
The distance covered in 4 hours while going downstream =(20×4)km
=80 km
The distance covered in 5 hours while going upstream=(16×5)km
=80 km
Thus,the both distances are equal.
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