SOLUTION: If a plumber charges $110 for 3 hours and $160 for 5 hours. In keeping this rate how much will he charge for 8 hours?

Question 15294: If a plumber charges $110 for 3 hours and $160 for 5 hours. In keeping this rate how much will he charge for 8 hours?
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
It would appear that the plumber charges $50 for the additional two hours from 3 hours to 5 hours, which is $25 per additional hour. At this rate, for an additional 3 hours, he/she would be charging an additional $75, added to the $160, for a total of $235.

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