Problema Solution
An experienced accountant can prepare a tax return in 10 hours. A novice accountant can do the job in 15 hours. How long will it take them to do the job working together?
Answer provided by our tutors
x/10 + x/15 = 1
30(x/10 + x/15 = 1)
3x + 2x = 30
5x = 30
x = 6
Working together it would take them 6 hours to do the job.