Question

1) 110 children choose their favourite colour from blue and pink. Every student has to choose at least one of
the colours 60 children choose blue colour while yo children choose pink colour ow many children choose
both the colours as their favourite colour ?​

Answer 1

Step-by-step explanation:

Let A be the number of students choosing blue and B be choosing pink

We have,

n(A∪B)=n(A)+n(B)−n(A∩B)

110=60+70−n(A∩B)

=>n(A∩B)=20

So, 20 students chose both the colours as their favourite colour

pls mark as brainliest

thnx

bye

pls follow me