Question

a can do a piece of work in 10 days B can do it in 15 days if they work together then in howany days can finish work

Answer 1

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Answer 2

A Can do work in = 10 days
A can do work in 1 day=1/10
B can do work in =15 days
B can do work in 1 day=1/15
A+B can do work in = 1/10+1/15
=3+2/30
=5/30
=1/6

then reciprocal it =6 days

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