Given: Passing marks percentage = 30% Marks obtained by the student = 225 Fails by marks = 15 Concept used: Maximum marks percentage = 100% Calculation: Amit gets 225 marks and fails by 15 marks ⇒ Pass marks = 225 + 15 ⇒ 240 Marks Now, according to question, percentage marks need to pass = 30% ⇒ 30% = 240 Marks ⇒ 100% = (240 / 30) × 100 Marks ⇒ 800 Marks ∴ required Maximum marks = 800