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fizixx
Feb 26, 2008, 04:58 AM
Hi everyone. My nephew wants to use the site so he is asking a question for the first time.

Here's the question:

It takes 7 hours for 2 workers to perform a certain construction job. How long will it take 4 workers to do the same job?

:rolleyes:

Thanks

galactus
Feb 26, 2008, 06:24 PM
Think about it a little. 2 workers do it in 7 hours. Wouldn't it take 4 workers half that time?

YOu can set up a proportion also.

\frac{7}{4}=\frac{x}{2}

Solve for x.