Martin has to secure 80% marks to clear his exam of class 9th.
He got 200 marks and failed by 200 marks.
What is the maximum marks ?	Select the correct option
A) 500	B) 505	C) 510	D) 515	E) 525
A   500   To pass the exam ravish needs 200 + 200= 
<gadget id="calculator">200 + 200</gadget>
<output>400</output>
400 marks.=&gt; (400/80) *100= 
<gadget id="calculator">(400/80) *100</gadget>
<output>500</output>
500
<result>A</result>
Martin has to secure 80% marks to clear his exam of class 9th.
He got 200 marks and failed by 200 marks.
What is the maximum marks ?