8
Answer: CSet 1: Ratios Rates Proportions (Intermediate)
Explanation
PROBLEM
Recent studies show that 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.
22
B.
19
C.✓ Correct
20
D.
18
Detailed Explanation
[Variation 1] Choice C is the best answer. Distance = 4 inches times 5 miles/inch = 20 miles
Why others are wrong:
A: 22 is incorrect because it does not satisfy the equation.
B: 19 is incorrect because it does not satisfy the equation.
D: 18 is incorrect because it does not satisfy the equation.