Question

18 women work 9 hour per day to complete 30% of the work in 30 day. The rest work is done by 9 women, working 9 hour per day. Then work done in how many days.
A) 145
B) 154
C) 147
D) 140
E) None of these

Answer 1

I don't know. this answer.

Answer 2

given,
30% can be completed by 18 women working about 9 hours
then 100 % work can be completed in 30*100/30=100 days
70% of work need to be done by 9 women about 9 hours...
18 women complete 30% work in 30 day working for 9 hours..
then,
9 women can complete the 15% work in 30day days working for 9 hours..

15%work is complete in 30 days
then 70% work can be completed in 70*30/15
=140 days