Question 8 Answer & Explanation - SAT Algebra

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algebra

The sum of two numbers is 25. One number is 5 more than the other. What is the smaller number?

12.5

Correct Answer: B

Choice Choice B is the correct answer.

Define: $x, x+5$ .
Equation: $x + (x + 5) = 25$
Simplify: $2x + 5 = 25$
Subtract 5: $2x = 20$
Divide by 2: $x = 10$
Verify: $10 + 15 = 25$ ✓

Choice Choice A is incorrect because this is the larger number.

Choice Choice D is incorrect because calculation error.

Choice Choice C is incorrect because calculation error.

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