Question

In a school, 20% girls study arts and 320 girls don't. Find the total number of girls?

Answer 1

80% girls = 320
Then 100% = 320*100/80 = 400 girls

Answer 2

20% girl are in arts means other 80% girl are not in arts
80%=320 girls
20% is one-fourth of 80%
then 1/4× 320 is 80
80 equals to 20%
100% = 20×5
80 ×5=400 girls
pls mark this answer as brainliest ans