Multiple Choice
Solve the problem.
-A contractor finds that it takes Sam Tockett 9 hours to construct a wall of a certain size. It takes Jim Lowell 7 hours to construct the same wall. How long would it take if they worked together?
A) 16 hours
B) of an hour
C) 1 hour
D) hours
Correct Answer:

Verified
Correct Answer:
Verified
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