SSAT Math Question 276: Answer and Explanation

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Test Information

Question: 276

10. Three less than a certain number is one-fourth of the number. What is the number?

  • A. 15
  • B. 12
  • C. 9
  • D. 6

Correct Answer: E

Explanation:

The answer is E

Translate the English into a mathematical equation, replacing less than with subtraction, is with an equal sign, and of with a multiplication sign: x - 3 = x. Next, add 3 to both sides and subtract x from both sides: x = 3. Last, divide both sides by (multiply by the reciprocal) to get x = 3 × = 4.

Test the answers, starting with choice (C). Three less than 9 is 6, but that is not the same as