Question

Out of 1200 pupils in a school, 900 are boys and the rest are girls. If 20% of the boys and 30% of the girls wear spectacles,find:
a.how many pupils in wear spectacles
b.what percent of the total number of pupils wear spectacles.

Answer 1

(a) .20*900 + .30*300
(b) divide that by 1200

Answer 2

Out of 200 pupils in a school,900 are boys and the rest are girls.if 20% of the boys and 30% are girls wear spectacles, find:. How many pupils in all wear spectacles

Answer 3

1050

Answer 4

A, is 270 and
B is 22.5%