2 5 of the pupils in a school wear spectacles. There are 2250 pupils in the school. How maby pupils do not wear spectacles?

Answer 1

To find out how many pupils do not wear spectacles, we first need to find out how many pupils wear spectacles.

There are 2250 pupils in total and 2/5 of them wear spectacles.

So, 2/5 x 2250 = <<2/5*2250=900>>900 pupils wear spectacles.

Therefore, the number of pupils who do not wear spectacles is 2250 - 900 = <<2250-900=1350>>1350. Answer: \boxed{1350}.