A school has 750 pupils.
b) How many boys are there in the school?
c) 54% of the pupils have a school lunch, 38% bring sandwiches and the rest go home for lunch. How many pupils go home for lunch?
To calculate the number of boys in the school, we need more information about the gender composition of the pupils.
To calculate the number of pupils who go home for lunch, we need to subtract the percentage of pupils who have a school lunch and the percentage of pupils who bring sandwiches from 100% (the total population).
Let's assume that 50% of the pupils are boys.
b) The number of boys in the school is 50% of 750 pupils, which is 0.50 * 750 = 375 boys.
c) The percentage of pupils who go home for lunch is 100% - 54% (have a school lunch) - 38% (bring sandwiches) = 8%.
The number of pupils who go home for lunch is 8% of 750 pupils, which is 0.08 * 750 = 60 pupils.