3
Answer: ASet 3: Ratios Rates Proportions (Advanced)
Explanation
PROBLEM
On a map, 1 inch represents 3 miles. If two cities are 6 inches apart on the map, how many miles apart are they?
On a map, 1 inch represents 3 miles. If two cities are 6 inches apart on the map, how many miles apart are they?
A.✓ Correct
18
B.
15
C.
16
D.
17
Detailed Explanation
Choice A is the best answer. Distance = 6 inches times 3 miles/inch = 18 miles
Why others are wrong:
B: 15 is incorrect because it does not satisfy the equation.
C: 16 is incorrect because it does not satisfy the equation.
D: 17 is incorrect because it does not satisfy the equation.