Haryana Police Constable Model Paper 2

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