5
Answer: ASet 1: Ratios Rates Proportions (Advanced)
Explanation
PROBLEM
On a map, 1 inch represents 5 miles. If two cities are 4 inches apart on the map, how many miles apart are they?
On a map, 1 inch represents 5 miles. If two cities are 4 inches apart on the map, how many miles apart are they?
A.✓ Correct
20
B.
18
C.
10
D.
23
Detailed Explanation
Choice A is the best answer. Distance = 4 inches times 5 miles/inch = 20 miles
Why others are wrong:
B: 18 is incorrect because it does not satisfy the equation.
C: 10 is incorrect because it does not satisfy the equation.
D: 23 is incorrect because it does not satisfy the equation.