A can do a piece of work in 12 days and B alone can do it in 10 days. B works at it for 5 days and then leaves. A alone can finish the remaining work in	Choose the most appropriate option:  A) 5days  B) 6days  C) 7.5days  D) 8.5days  E) 9days
Explanation:   6days's 5 days work =   1/10∗5=1/2   Remaining work =1−1/2=1/2   A can finish work =12∗1/2= 6 days   Option 6days
<result>B</result>
A can do a piece of work in 12 days and B alone can do it in 10 days. B works at it for 5 days and then leaves. A alone can finish the remaining work in