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3 years ago

10

Sally can paint a room in 7 hours while it takes Steve 4 hours to paint the same room. How long would it take them to paint the

room if they worked together?

1 answer:

crimeas [40]3 years ago

4 0

The formula for this is
worker 1 * worker 2 / worker 1 + worker 2

7 * 4 / 7 + 4 =
28 / 11 =
2.54 hours

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