Question

It is found that 21 people like product A 26 people like product B 29 people like product C 14 like both product Aand B 14 like both product Band C 12 like both product Cand A. If 8 like all the three products then find hiw many people like only one of the products

Answer 1

Answer:

3 like only product A, 6 like only product B , and 11 like only product C.

Explanation:

Given,

A=21

B=26

C=29

AnB = 14

BnC = 14

CnA = 12

AnBnC = 8

Now,

to find no of people who only like one product,

$A_{o}$= 21 - 14 - 12 + 8

   = 3

$B_{o}$=  26 - 14 - 14 + 8

   = 6

$C_{o}$= 29 - 14 - 12 +8

   = 11