Question

a steamer goes downstream and covers a certain distance in 3 hours, whereas it covers the same distance upstream in 5 hours. If the speed of the stream is 3 km per hour then, find the speed of the steamer in still water. what is the answer?

Answer 1

let the speed of still water be x
speed while going down stream=x+3km/h
distance covered going downstream = 3(x+3)
speed while going upstream= x-3km/h
distance covered going upstream =5(x-3)
distance is same
3x+9 =5x-15
3x-5x = -15+9
-2x = -6
x= -6/-2
x= 3

Answer 2

Answer:

Step-by-step explanation:

Let the speed of still water be x

speed while going down stream=x+3km/h

distance covered going downstream = 3(x+3)

speed while going upstream= x-3km/h

distance covered going upstream =5(x-3)

distance is same

3x+9 =5x-15

3x-5x = -15-9

-2x = -24

x= -24/-2

x= 12

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