In a school of 600 students, the ratio of boys to girls is 7 : 5. How many girls are enrolled in the school?
Answer and explanation
Correct answer: B. 250
- Step 1: Total ratio parts = 7 + 5 = 12 parts. Step 2. One part = 600 ÷ 12 = 50 students. Number of girls (5 parts) = 5 50 = 250 girls. Answer: 250. Why not the others:* 350 is the number of boys (7 parts); 300 assumes an equal 1:1 ratio; 200 is 4 parts.
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