Question

A,B,C and D are contesting for the district elections. Of the total population, 50% like A, 25% like B, 30% like C. All of those who don’t like any of these like D. All those who like B, like both A and C. All those who like C, like A as well. Number of people who like C and not B is what percent of those who like D?

• A. 10
• B. 15
• C. 25
• D. 20

Answer 1

The correct option is A 10

option (b)

From the Venn diagram given, it's clear that no. of people who like C and not B are 30 - 25 = 5. People who like D are 100 - 50 = 50. Therefore, $\frac{5}{50}\times 100=10$.