When a student score 35% marks, he fails by 15 marks. But when he scores 42% marks he got 20 more marks than passing marks. Find passing percentage.
Answer & explanation
Correct answer: option 1
Let total marks = x
ATQ, x × (42 - 35) % = 15 + 20 = 35
x = 500
35 % of 500 = 175 (He fails by 15 marks so passing marks are 175 + 15 = 190)
Passing percentage = \(\frac{190}{500}\) × 100 = 38 %