Qus 10 : P and Q can together finish a work in 30 days. They worked at it for 20 days and then Q left . The remaining work was done by P alone in 20 more days. In how many days can P alone do it ?
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p takes 60 days to complete the work alone
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Answer: 60 days
Step-by-step explanation:
(P+Q) === 30 days == 1 work
(P+Q) 1 day === 1/30 work
(P+Q) 20 days = 20/30 = 2/3 work
Work remaining = 1 - 2/3 = 1/3 work
P in 20 days == 1/3 work
1 work == 20*3 = 60 days
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