Problema Solution
tina can weed her garden in 90 minutes her friend can weed her garden in 40 minutes how long would it take if they worked together?
Answer provided by our tutors
In 1 minute Tina can weed 1/90 of the garden.
In 1 minute her friend can weed 1/40 of the garden.
Let 'x' represent the number of minutes Tina and her friend need to weed the garden together.
In 1 minute Tina and her friend will weed 1/x of the garden.
1/90 + 1/40 = 1/x
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click here to see the equation solved for x
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x = 27.69 min
If they work together, they will need 27.69 minutes to weed the garden.