A and B can do a piece of work in 12 days and 15 days respectively. They began to work together but A left after 4 days. In how many more days would B alone complete the remaining work ?

A and B can do a piece of work in 12 days and 15 days respectively. Th

1.	A and B can do a piece of work in 12 days and 15 days respectively. They began to work together but A left after 4 days. In how many more days would B alone complete the remaining work ?
A.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>20</center></td><td rowspan="2">days</td></tr><tr><td style="text-align: center;">3</td></tr></table>
B.	<table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>25</center></td><td rowspan="2">days</td></tr><tr><td style="text-align: center;">3</td></tr></table>
C.	6 days
D.	5 days
Answer» D. 5 days

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A and B can do a piece of work in 12 days and 15 days respectively. They began to work together but A left after 4 days. In how many more days would B alone complete the remaining work ?

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