Multiple Choice
Solve the problem.
-From a point on a river, two boats are driven in opposite directions, one at 9 miles per hour and the other at 11 miles per hour. In how many hours will they be 40 miles apart?
A) 3 hr
B) 2 hr
C) 1 hr
D) 4 hr
Correct Answer:
Verified
Correct Answer:
Verified
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