PSAT Math Multiple-Choice Question 254: Answer and Explanation

Question: 254

A county contains 25 villages, 12 towns, and 3 cities. There is an average of 6 stoplights in a village, 27 in a town, and 148 in a city. Estimate the total number of stoplights.

• A. 800
• B. 900
• C. 1,200
• D. 1,300

Correct Answer: B

Explanation:

The correct solution is 900, the expression for estimation is 25(6) + 10(30) + 150(3). The expression simplifies to 150 + 300 + 450 = 900 stoplights. See Lesson: Solving Real-World Mathematical Problems.