When a student score 30% marks, he fails by 5 marks. But when he scores 40% marks he got 10 more marks than passing marks. Find passing percentage.

33\(\frac{1}{3}\)% 32% 37.5% 34\(\frac{1}{7}\)%

33\(\frac{1}{3}\)%

Let total marks = x ATQ,    x × 10 % = 15                      x   = 150 30 % of 150 = 45 (He fails by 5 marks so passing marks are 45 + 5 = 50) Passing percentage = \(\frac{50}{150}\) × 100 = 33\(\frac{1}{3}\) %