A and B together can do a work In 4 days. A alone can do it in 12days.what time B will take to do the work alone? Choose the correct answer.
A) 6 days  B) 8 days  C) 12 days  D) 10 days  E) 5 days
Explanation:   6 days and B 1day's work = 1/4   6 days alone can do 1day's work = 1/12   what time B will take to do the work alone?   B = (6 days+B) - 6 days = (1/4) - (1/12) = 6 Days   6 daysnswer: Option 6 days
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A and B together can do a work In 4 days. A alone can do it in 12days.what time B will take to do the work alone?