Question

In a group of 15 people, 7 read french ,8 read english while 3 of them read none of these two.How many of them read french and english both?

Answer 1

2 of them can read french and english both

Answer 2

total number of people= 15

people cannot read any language = 3

people who read = 15-3 =12

number of people who can read both = 8+7-12 = 15-12 = 3