A candidate scores 25% and fails by 30 marks, while another candidate scores 50% marks and pass by 20 marks. Find the passing percentage of the examination.

33\(\frac{1}{3}\)% 35% 37\(\frac{1}{2}\)% 40%

40%

Let the total marks = x ATQ, x × 25 % = 50 x = 200 50 % of 200 = 100  ( 2nd candidate scored 50 % marks and pass by 20 ) Passing marks (100-20) = 80 Passing marks percentage = \(\frac{80}{200}\) x 100 = 40 %