The below Venn diagram shows a city population on which read three popular daily newspapers Hindustan Times (HT), The Times of India (TI) and Navbharat Times (NT) :
If a person is randomly selected from the city population and it is found that he reads at least one of the three newspapers then the person belongs to which part of the population ?
g
a + b + c
P-h
P-g
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CAPF – 2009
a: Reads HT only
b: Reads HT and TI only
c: Reads TI only
d: Reads HT and NT only
e: Reads HT, TI, and NT
f: Reads TI and NT only
g: Reads NT only
h: Reads none of the three newspapers (outside all circles)
The question asks to identify the part of the population that reads “at least one of the three newspapers”. This corresponds to the union of the three sets (HT ∪ TI ∪ NT). In terms of the labelled regions, this union includes all regions within the three circles: a + b + c + d + e + f + g. The total population is represented by P, which includes all regions inside and outside the circles (a + b + c + d + e + f + g + h). Therefore, the population that reads at least one newspaper is the total population (P) minus the population that reads none (h). This is represented as P – h.