A and B together can finish a price of work is 12 days. If A alone can finish the same in work in 20 days, and how many days B alone can finish it?
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A and B work in 1 day = 1/A + 1/B = 1/12..... (1)
A work in 1 day = 1/20....(2)
from 1 we have
1/20 +1/ B = 1/12
=>1\B = 1/30
=> B = 30 days....
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A work in 1 day = 1/20....(2)
from 1 we have
1/20 +1/ B = 1/12
=>1\B = 1/30
=> B = 30 days....
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