Question

Just to need solve this asap

Answer 1

Answer: 55

Step-by-step explanation:

Given

Values are presented in the Venn diagram

No of left-handed students $n(A)=25$

No of vegetarians students $n(B)=45$

Students who are left-handed and vegetarian is given by $n(A\cap B)=15$

$n(A\cup B)$ is given by $n(A\cup B)=n(A)+n(B)-n(A\cap B)$

Put the values

$n(A\cup B)=25+45-15\\n(A\cup B)=55$