SAT Math Multiple Choice Practice Question 458: Answer and Explanation

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Question: 458

20. On a map, 1 centimeter represents 6 kilometers. A square on the map with a perimeter of 16 centimeters represents a region with what area?

A. 64 square kilometers
B. 96 square kilometers
C. 256 square kilometers
D. 576 square kilometers
E. 8,216 square kilometers

Correct Answer: D


D This is a tricky question. Let's draw a picture:

Because 1 centimeter equals 6 kilometers, 4 centimeters equals 24 kilometers:

The area of this region is 242 or 576. In case you were wondering, B is the Joe Bloggs answer because 16 × 6 = 96.

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