SOLUTION: It takes Matt 15 hours to pick 40 bushels of apples. Ndiba can pick the same amount in 13 hours. If they worked together how long would it take them?

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Question 1133581: It takes Matt 15 hours to pick 40 bushels of apples. Ndiba can pick the same amount in 13 hours. If they worked together how long would it take them?
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
40%2F15%2B40%2F13bushels+per+hour

compute and find the reciprocal which will be hours per bushel.

%2813%2A40%2B15%2A40%29%2F%2813%2A15%29

40%2A28%2F195
-
%28195%2840%2A28%29%29%2A40=195%2F28=highlight%286%2627%2F28%29------------almost 7 hours for the two together to pick 40 bushels.

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

It takes Matt 15 hours to pick 40 bushels of apples. Ndiba can pick the same amount in 13 hours. If they worked together how long would it take them?
This is ONE (1) job, so with T being time, we get: matrix%281%2C3%2C+1%2F15+%2B+1%2F13%2C+%22=%22%2C+1%2FT%29

Solve for T, the time both took to do the job.