Question

A steamer goes downstream from one point to another in 6 hours. It covers the same distance upstream in 7 hours. If the speed of stream be 2 km/hr, then the speed of the steamer in still water is

Answer 1

Answer:

26km/hr

Step-by-step explanation:

let speed of streamer be x

speed up stream= x-2

speed down stream = x+2

time = distance/speed

6hrs = dist/x+2

7hrs = dist/x-2

6x+12 = dist

7x-14 = dist

we know dist is same

so,

6x+12 = 7x-14

x= 26km/hr