SOLUTION: A and B can do a job in 25 days. B alone can do 1/3 of the job in 15 days. In how many days can A alone do it. [Hints: B can do whole work in (153) = 45 days]
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-> SOLUTION: A and B can do a job in 25 days. B alone can do 1/3 of the job in 15 days. In how many days can A alone do it. [Hints: B can do whole work in (153) = 45 days]
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Question 485246: A and B can do a job in 25 days. B alone can do 1/3 of the job in 15 days. In how many days can A alone do it. [Hints: B can do whole work in (153) = 45 days] Answer by jorel1380(3719) (Show Source):
You can put this solution on YOUR website! b=1/3 job in 15 days
b=1 job in 45 days
1/n+1/45=1/25
225/n+5=9
225/n=4
4n=225
n=225/4=56-1/4
A can do the job alone in 56&1/4 days..
