- A12 : 11
- B33 : 37
- C37 : 33
- D7 : 6
Step-by-Step Solution
Boys = 24 + 20 + 30 = 74 and girls = 18 + 27 + 21 = 66. The ratio 74 : 66 divides by 2 to give 37 : 33.
Answer: C) 37 : 33
Number of students in three classes — Class 8: Boys 24, Girls 18. Class 9: Boys 20, Girls 27. Class 10: Boys 30, Girls 21. What is the ratio of the total number of boys to the total number of girls?
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