Given: Total students are 60 Students who like painting = 45 Students who like singing = 50 Students who do not like both painting and singing = 5 Calculation:
Students who like painting = A + B = 45 Students who like singing = B + C = 50 Total students = A + B + C + 5 = 60 ⇒ A + B + C = 60 – 5 = 55 ⇒ 45 + C = 55 ⇒ C = 10 As, B + C = 50 ⇒ B + 10 = 50 ⇒ B = 50 – 10 = 40 ∴ Students who like both painting and singing is 40