Kami, Kavya and Kirti can together weave a carpet in 4 days. Kami by herself can weav e the same sized carpet in 12 days and Kirti can do it in 10 days. How long will Kavya take to do the work by herself?
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15 days
time taken to kami to weave a carpet in 12 days.
time taken to kirti to weave a carpet in 10 days.
kami, kavya, and kirti 1st day work 1/4.
kami 1st day work 1/12 and kirti 1st day work 1/12.
1/4-1/12-1/10= 15-5-6/60=4/60=1/15 so, 15 days kavya take to do the work by herself.
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Answer:
Abdul does (1/10)th of the work in a day.
Ramesh does (1/15)th of the work in a day.
In 2 days, Abdul and Ramesh do (2/10)+(2/15) = (6/30) +(4/30) = (10/30) or (1/3)rd of the work in a day.
After 2 days the work remaining is (2/3)rd, which Abdul will do in (2/3)/(1/10) = (20/3) or 6 and 2/3rd of the 7th day.
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