A can finish a work in 12 days and B can do it in 15 days. After A had worked for 3 days, B also joined to
finish the remaining work. In how many days, the remaining work will be finished?
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Answer:
8 days
Step-by-step explanation:
A one day work = 1/12
B one day work = 1/15
Work done by A in 3 Days = 1/12*3
= 1/4
work remaining= 1-1/4
= 3/4
A+B one day work = 1/12+1/15
=3/20
3/20*x=3/4
= 5 days
Total
= 5+3
= 8 days
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