A student solved this problem and said the answer was 8 3/4 hours.
Fred spent 5 hours doing his three chores on the weekend. He spent 1 1/2 hours mowing the lawn, 2 1/4 hours weeding the garden, and the rest washing the car. How long did Fred spend washing the car?
Is the student's answer reasonable?
A.
Yes, the answer is reasonable.
B.
No, the answer is not reasonable. It should be about half an hour.
C.
No, the answer is not reasonable. It should be about 1 hour.
D.
No, the answer is not reasonable. It should be about 3 hours.
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