Multiple Choice
Solve the problem.
-Tracy can wallpaper 5 rooms in a new house in 15 hours. Together with her trainee they can wallpaper the 5 rooms in 11 hours. How long would it take the trainee working by herself to do the job?
A) 35 hr
B) 50 hr
C) 70 hr
D) 15 hr
Correct Answer:
Verified
Correct Answer:
Verified
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