2008 AMC 12A Problem 1
Problem 1 of 25EasierAlgebra
A bakery owner turns on his doughnut machine at am. At am the machine has completed one third of the day’s job. At what time will the doughnut machine complete the job?
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Solution
From am to am is hours minutes, or minutes, to complete one third of the job.
The whole job then takes minutes, or hours. Adding hours to am gives pm.
Thus, D is the correct answer.