Question

Hi
I will mark as brain list
Please tell me answer of this question with Step-by-step explanation ​

Answer 1

Answer:

20

Step-by-step explanation:

We actually have to find the region shaded.

As it is given to us that number of students=100.

And coffee =50 tea=60

And both one are, 30

Using basic sets we come to the following result which I gave you in the attachment.

Kindly visit that, but if problem still persists. Do tell me!

Will find solution, for sure..

Thanks!