PSAT Math Multiple-Choice Question 576: Answer and Explanation
Question: 576
What is the percent chance that one of the 300 patients will have at least one of the conditions—high cholesterol or high blood pressure
- A. 36%
- B. 40%
- C. 48%
- D. 52%
Correct Answer: B
Explanation:
(B) There are 40 patients with both conditions, 50 who have only high cholesterol, and 30 who have only high blood pressure:
40 + 50 + 30 = 120
Divide 120 by the 300 total to find the percent:
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