2
Answer: BSet 1: Ratios Rates Proportions (Intermediate)
Explanation
PROBLEM
Recent studies show that a car travels at 31 miles per hour for 4 hours. How many miles does it travel?
A car travels at 31 miles per hour for 4 hours. How many miles does it travel?
A.
123
B.✓ Correct
124
C.
248
D.
62
Detailed Explanation
[Variation 1] Choice B is the best answer. Distance = Rate times Time = 31 times 4 = 124 miles
Why others are wrong:
A: 123 is incorrect because it does not satisfy the equation.
C: 248 is incorrect because it does not satisfy the equation.
D: 62 is incorrect because it does not satisfy the equation.