Question

while cycling along the wind a boy can cover a distance of 30 km in 3 hours and returning back through the same distance he takes 5 hours find the speed of wind and the speed of cycling in still air

Answer 1

let the speed of cycling in still air is x

speed of wind = y

now cycling along the wind

30/(x+y) = 3

x+y = 10 --------(1)

opposite wind

30/(x-y) = 5

x-y = 6 ---------(2)

solving 2 equations we get

x = 8

y = 2

so the speed in still air is 8kmph

and speed of wind is 2kmph

Answer 2

Step-by-step explanation:

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