Answers

2015-11-12T21:26:43+05:30
A can do in = 10days
in day, work done by A = 1/10

B can do in = 15days
in day, work done by A = 1/15

total work by them in 1day = 1/10 + 1/15 = (3+2)/30 = 1/6
to complete work, time needed = 1/(1/6) = 6 days
they can complete it in 6days.
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