There are 800 student in a school,37% of them are girls.if the number of boys and girls are increased by 20%and 10% respectively, what is the percentage change in the number of students?
Answer (1)
Answer:Here's how to solve the problem: 1. Calculate the initial number of girls: - 800 students * 37% = 296 girls 2. Calculate the initial number of boys: - 800 students - 296 girls = 504 boys 3. Calculate the increase in the number of boys: - 504 boys * 20% = 100.8 boys 4. Calculate the increase in the number of girls: - 296 girls * 10% = 29.6 girls 5. Calculate the total increase in the number of students: - 100.8 boys + 29.6 girls = 130.4 students 6. Calculate the new total number of students: - 800 students + 130.4 students = 930.4 students 7. Calculate the percentage change in the number of students: - ((930.4 students - 800 students) / 800 students) * 100% = 16.3% Therefore, the percentage change in the number of students is 16.3%.
