Question

In a survey of 240 people, it was found that 130 people like tea 120 like coffee, while 40 do not like both tea and coffee by drawing a Venn diagram, find the number of people who like both tea and coffee​

Answer 1

I don't no the answer sorry

Answer 2

Answer:

total people's in survey = 240

people's like tea = 130

people's like coffee = 120

people's don't like both tea or coffee = 40

people's like both tea or coffee = ( people's like tea + people's like coffee ) -(people's don't like both tea or coffee)

people's like both tea or coffee = (130+120)-(40)=250-40=210.

now,

people's like both tea or coffee = total people's -find the people's.

people's like both tea or coffee= 240-210=30.

then,

answer = 30 people's.