Question

A, B and C together take 8 min to address a pile of envelopes. a and b together would take 10 min; a and c together take 15 min. how long will each take working alone? The answer is A= 24 min,B= 120/7 and C=40 min
Please give a correct solution because my exam are near and if u don't know the answer pls leave
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Answer 1

Answer:

A's 1 day work 1/24, B's 1 day work 7/120, C's 1 day work 1/40, adding = 1/24 + 7/120 + 3/40 = 5/120 + 7 / 120 + 3/120 = 15/120 = = 8 days given in the question. You can solve this in the same way.

Answer 2

Answer:

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