10

Set 5: Ratios Rates Proportions (Intermediate)

Explanation

Answer: C

PROBLEM

On a map, 1 inch represents 5 miles. If two cities are 8 inches apart on the map, how many miles apart are they?

On a map, 1 inch represents 5 miles. If two cities are 8 inches apart on the map, how many miles apart are they?

A.

38

B.

41

C.

40

✓ Correct
D.

43

Detailed Explanation

Choice C is the best answer. Distance = 8 inches times 5 miles/inch = 40 miles

Why others are wrong:
A: 38 is incorrect because it does not satisfy the equation.
B: 41 is incorrect because it does not satisfy the equation.
D: 43 is incorrect because it does not satisfy the equation.

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