8
Answer: ASet 3: Ratios Rates Proportions (Intermediate)
Explanation
PROBLEM
Recent studies show that on a map, 1 inch represents 2 miles. If two cities are 5 inches apart on the map, how many miles apart are they?
On a map, 1 inch represents 2 miles. If two cities are 5 inches apart on the map, how many miles apart are they?
A.✓ Correct
10
B.
9
C.
12
D.
7
Detailed Explanation
[Variation 1] Choice A is the best answer. Distance = 5 inches times 2 miles/inch = 10 miles
Why others are wrong:
B: 9 is incorrect because it does not satisfy the equation.
C: 12 is incorrect because it does not satisfy the equation.
D: 7 is incorrect because it does not satisfy the equation.