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**Ayomide****Member**- Registered: 2020-05-14
- Posts: 3

I figured it was speed we were looking for, so this is what I did:(Let speed of wind=w, and speed of rider=x)

Using distance/speed=time:

1/(x+w)=3

1/(x-w)=4

x+w=1/3

x-w=1/4

2x=7/12

x=7/24 miles/min

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**Bob****Administrator**- Registered: 2010-06-20
- Posts: 9,355

hi Ayomide

I've would do this puzzle in a similar fashion too. The 'solution' uses a sort of averaging effect and I'm a bit suspicious about that in general, although it does seems to work here.

The question actually asks for the time to do a mile so you are one step short of that at the moment.

Bob

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

Sometimes I deliberately make mistakes, just to test you! …………….Bob

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