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Al washed a car in 6 minutes.

Fred washes the same car in 8 min. How long dies it take Al and Fr...

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Al washed a car in 6 minutes.

Fred washes the same car in 8 min.
How long dies it take Al and Fred to wash the car together?

Answer

[tex]In\ 1min\ Al\ wash\ \frac{1}{6}\ car.
\\In\ 1min\ Fred\ wash\ \frac{1}{8}\ car\\\\Together\ in\ 1\frac{1}{6}+\frac{1}{8}=\frac{4}{24}+\frac{3}{24}=\frac{7}{24}\ car\\\\\ and\ Fred\ wash\ the\ car\ in\ \frac{24}{7}min=3\frac{3}{7}min\approx3.5min[/tex]

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Virtual Teaching Assistant: John B.
Question Level: Basic
Karma: Free
Upload Date: 5/31/2017

This 28 words question was answered by John B. on StudySoup on 5/31/2017. The question contains content related to Math Since its upload, it has received 213 views.

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