A student took five papers in an examination, where the full marks were the same for each paper. His marks in these papers were in the proportion of 5 : 6 : 7 : 8 : 9. In all papers together, the candidate obtained 60% of the total marks. Then the number of papers in which he got more than 50% marks is Choose the correct option
A) 2	B) 3	C) 4	D) 5	E) 1
Here we can assume that one subject is of 100 marks so total there are 5 subjects =&gt; 100*5= 
<gadget id="calculator">100*5</gadget>
<output>500</output>
500.   Now according to the question he secured 60 % of those which is 60%of 500= 300 marks in total.   The ratio between the marks is given as 5 : 6 : 7 : 8 : 9 , so now we can distribute 300 marks according to the ratio.   Total ratio = 35   For 6 : (300/35)*6 = 51.4   Similarly , we will get for others as 60 , 68.57 , 77.14   Hence , there are 5 subject where he secured more that 50 %.   The answer is 5.   5
<result>D</result>
A student took five papers in an examination, where the full marks were the same for each paper. His marks in these papers were in the proportion of 5 : 6 : 7 : 8 : 9. In all papers together, the candidate obtained 60% of the total marks. Then the number of papers in which he got more than 50% marks is