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Solve the Problem 8158 \frac { 1 } { 5 }

Question 21

Multiple Choice

Solve the problem.
-Amy can clean the house in 9 hours. When she works together with Tom, the job takes 4 hours. How long would it take Tom, working by himself, to clean the house?


A) 5 hours
B) 8158 \frac { 1 } { 5 } hours
C) 7257 \frac { 2 } { 5 } hours
D) 7157 \frac { 1 } { 5 } hours

Correct Answer:

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