SOLUTION: A and B can do a work in 20 and 30 days. A worked for few days and with the help of B,the work finished in 14 days. How many days did A worked alone?
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Question 903907: A and B can do a work in 20 and 30 days. A worked for few days and with the help of B,the work finished in 14 days. How many days did A worked alone?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
a+b=14,
a/20+b/20+b/30=1
a = 5, b = 9
A worked alone for 5 days and a and b worked together for 9 days
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