A student has to score 15% marks to get through. If he gets 80 marks and fails by 70 marks, the maximum marks set in the examination and passing marks are respectively
a)	(1000, 150)	b)	(1500, 225)	c)	(800, 120)	d)	(600, 90)

Let the total marks be

Passing marks=5% of                                                                                         …(i)

As he obtained 80 marks and fails by 70

∴ Passing marks=80+70=150                                                                                         …(ii)

From (i) and (ii), we have

∴ (Maximum marks, Passing marks)=(10000, 150)

Alternative Method (Using F-8(i)):

Maximum marks =

∴

Passing marks=Marks obtained + Marks by which he failed=80+70=150