Question

In a group of 200 persons,40 take coffee,80 take tea,30 takes both,how many person takes atleast one of the two beverage?​

Answer 1

Hey there i checked the answer on net but i didn't find.. Idk this answer as i am in 10th but i found a similar question

In a group of 100 persons, 80 take tea, 30 take coffee and 20 take both of tea and coffee. How many persons takes neither tea nor coffee?

The total group is of 100 people.

Number of people who drink tea n(T) = 80

People who don’t like tea n(A) = 20

Number of people who drink coffee n© = 30

People who don’t like coffee n(B) = 70

Number of people who take both n(C intersection T) = 20

People who don’t like coffee or tea n(A intersection B) = n(A) + n(B) – n (C intersection T)

20 + 70 – 20

= 70