SSAT Math Question 333: Answer and Explanation

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Question: 333

2. How Peter Spends His Monthly Income

The amount Peter spends for his cell phone is what percent of the amount he spends for food and health insurance?

  • A. 20%
  • B. 30%
  • C. 40%
  • D. 50%

Correct Answer: D

Explanation:

The answer is D

Peter pays $150 for his cell phone and a total of $300 for food and health insurance. Set up a proportion: . Cross-multiply and divide by 300: x = 50.

Rather than set up a proportion, translate English into math. What means variable (y), percent means over , of means times (×), and is means equals (=). So, 150 is what percent of 300 translates to 150 = × 300 = = 3y. Divide both sides by 3: y = 50.

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