3
Answer: DSet 2: Ratios Rates Proportions (Intermediate)
Explanation
PROBLEM
A car travels 306 miles at 51 miles per hour. How many hours does it take?
A car travels 306 miles at 51 miles per hour. How many hours does it take?
A.
3
B.
3
C.
9
D.✓ Correct
6
Detailed Explanation
Choice D is the best answer. Time = Distance / Rate = 306 / 51 = 6 hours
Why others are wrong:
A: 3 is incorrect because it does not satisfy the equation.
B: 3 is incorrect because it does not satisfy the equation.
C: 9 is incorrect because it does not satisfy the equation.