A candidate who gets 30% of the marks fails by 30 marks. But another candidate who gets 45% marks gets 15 marks more than necessary for passing. Find the number of marks for passing?	Options.
A) 100 marks	B) 200 marks	C) 280 marks	D) 371 marks	E) 120 marks

Rationale: "30 % - - - - - - - - - - - - 30 45 % - - - - - - - - - - - - 15 - - - - - - - - - - - - - - - - - - - - - - 15 % - - - - - - - - - - - - - 45 30 % - - - - - - - - - - - - - - ? 90 + 30 = 120 marks answer : e"
Answer: E