Question

P does half as much work as Q in 1/3 of the time .if together take 15 days to complete work. how many days will p take to do it alone
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Answer 1

Let B takes x days to do the work.

According to the question

A takes 2×

3x/4

= 3x/2

(A+B)s 1 days work= 1/18

then 1/x+2/3x=1/18

5/3x=1/18

x= 18×5/3

=30

Hence B takes 30 days to do work