Question

jaya and seema can together do a piece of work in 10 hours. seema alone can do it in 15 hours how long jaya take to do it alone?
please reply its really important ........

Answer 1

Jaya and Seema can do a piece of work in 10 hours .
so, in 1 hour they will do 1/10 piece  of work .
and Jaya alone will do the work in 15 hours.
so , in 1 hour she will do 1/15 of work.
Then , ATQ , 
1/10 - 1/15 = x
x = 5/150
x = 1/30
so , seema alone will do the work in  30 hours.

wish it helps : )
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Answer 2

Hello, here's answer..

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