in a class of 48 students, 75% are girls and the rest are boys. only 50% of the students know swimming. only 25% of the remaining take part in extra curricular activities.
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Answer:
The number of students who know swimming are 24 and the number of students who take part in the extra curricular activities are 12.
Step-by-step explanation:
Total number of students in a class = 48.
Number of girls = 75 % × 48 = 75 / 100 × 48
Number of girls = 36 girls
Number of boys = 48 - 36 = 12 boys.
Number of students who know swimming = 50 % × 48 = 50 / 100 × 48
Number of students who know swimming = 24
Number of students who take part in the extra curricular activities = 25 % × 48 = 25 / 100 × 48
Number of students who take part in the extra curricular activities = 12.
Therefore, we get that the number of students who know swimming are 24 and the number of students who take part in the extra curricular activities are 12.
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