One man and one woman together can complete a piece of work in 8 days. A man alone can complete the work in 10 days. In how many days can one woman alone complete the work ?

One man and one woman together can complete a piece of work in 8 days.

1.	One man and one woman together can complete a piece of work in 8 days. A man alone can complete the work in 10 days. In how many days can one woman alone complete the work ?
A.	<table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>140</center></td><td rowspan="2">days</td></tr><td align="center">9</td></table>
B.	30 days
C.	40 days
D.	42 days
Answer» D. 42 days

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One man and one woman together can complete a piece of work in 8 days. A man alone can complete the work in 10 days. In how many days can one woman alone complete the work ?

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