Question

a man goes down stream at x km/h and upstream at y km/h.find the speed of the boat in still water.​

Answer 1

Answer:

Given Equation: Speed of boat in still water =10 km\hr

Boat Travels a distance of 37.5 km in time 5 hr.

Factor to consider speed of stream be 's'

According to the formula:

Speed =

Time

Distance

Total speed = speed of boat in still water and speed of stream

Since the boat travels upstream

Total speed = Speed of boat in still water - speed of water in stream

10−s=

5

37.5

10−s=7

2

1

s=2.5 km\hr