SOLUTION: An experienced accountant can prepare a tax return in 11 hours. A novice accountant can do the job in 17 hours. How long will it take them to do the job working together? answer in
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Question 1015895: An experienced accountant can prepare a tax return in 11 hours. A novice accountant can do the job in 17 hours. How long will it take them to do the job working together? answer in fraction an hr
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Estimate 9% for first and 6% for second, so answer should be about 15% per hour or between 6 and 7 hours.
(1/11) is done per hour by experienced. (1/17) by novice.
that equals 1.
(x/11)+(x/17)=1
multiply everything by 187, common denominator
17x+11x=187
28x=187
x=187/28 hours, which is between 6 and 7.
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