there r 5 papers Ratio of marks obtained in each subject is 6:7:8:9:10. Total marks obtained is 60%. 50% is pass marks. In how many subjects did he get above 50%.  Choose one: A) 1 B) 2 C) 3 D) 4 E) 5
Total marks in 5 papers = 60% (i.e., 60*5 = 300)   6x+ 7x+ 8x+ 9x+ 10x =60/100(500)   Put x= 8 for solving,   6x= 48; 7x = 56; 8x = 64 ; 9x = 72; 10x = 80   Marks are 6:7:8:9:10 = 48+56+64+72+80   = 300   So, 4 subjects he got 50% above   ANSWER:4
<result>D</result>
there r 5 papers Ratio of marks obtained in each subject is 6:7:8:9:10. Total marks obtained is 60%. 50% is pass marks. In how many subjects did he get above 50%.