The table gives the activity-wise enrolment in a school for 2020-21. A total of 3000 students, including 1750 girls, are enrolled. The first column is each activity's share of all 3000 students; the second is its share of the 1750 girls.
| Activity | Share of students (3000) | Share of girls (1750) |
|---|---|---|
| Swimming | 16% | 14% |
| Singing | 21% | 28% |
| Drawing | 14% | 16% |
| Dancing | 24% | 20% |
| Handicraft | 25% | 22% |
What is the ratio of the number of girls enrolled in Swimming to the number of boys enrolled in Swimming?
A59:49
B23:29
C33:43
D49:47 ✓ Correct
Correct answer: (D) 49:47
Explanation
Swimming students are 16% of 3000 = 480 and girls are 14% of 1750 = 245, so boys are 480 minus 245 = 235; the ratio 245:235 reduces to 49:47. Hence option D.
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