Question

A man went a mile in 3 minutes towards the wind and four minutes against the wind.How far could he go a mile when there was no wind

Answer 1

Step-by-step explanation:

Here's your answer.

let the speed when there is no wind=x miles/minutes

let the speed of the wind=y miles/minutes

speed with the wind=(x+y)miles/minutes=1/3

speed against the wind=(x-y)miles/minutes=1/4

x+y=1/3

3x+3y=1

x-y=1/4

4x-4y=1

3x+3y=1

4x-4y=1

(3x+3y=1)4

(4x-4y=1)3

12x+12y=4

12x-12y=3

adding both the equations

24x=7

x=7/24 miles/minutes

he could go 7/24 miles if there was no wind.

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