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1. A class of 50 girls and 70 boys sponsored a party. If 40% of the girls and 50% of the boys attended the party, approximately what percent of the class attended?
- A. 40
- B. 40
- C. 40
- D. 40
Answer: Option D
Explanation:
First, we need to find out 40% of the 50 girls. That is 50 x 0.4 = 20 girls.
Next, we need to find out 50% of the 70 boys. That is 70 x 0.5 = 35 boys.
Therefore, 20 + 35 = 55 people attended.
In total there were 50 + 70 = 120 people.
So the percent would be 55/120 = 11/24 ≈ 45.83% ≈ 46%.
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