Answer 1

Let M = set of individuals who read Marathi newspapers

E = set of individuals who read English newspapers

X = set of all literate individuals

∴ n(X) = 2000, n(M)

= `70/100xx2000`

= 1400

n(E) = `50/100xx2000` = 1000

n(M ∩ E) = `32.5/100xx2000` = 650

n(M ∪ E) = n(M) + n(E) − n(M ∩ E)

= 1400 + 1000 − 650

= 1750

No. of individuals who read at least one of the newspapers = n(M ∪ E) = 1750.