Reshma wrote 5papers for her board exams English Telugu maths science and social ..the max marks for each paper was 100. she got an aggregate of 63%. she applied for revaluation of all papers. on revaluation English and Telugu marks were unchanged. she got 12marks more in maths. 2 marks less in social and 7 marks more in science. what is her new aggregate percentage???

• Sol:
  
  63% of 5 subjects=63×5=315
  Revaluation changed mark=12-2+7=17
  New total =315+17=332
  New aggregate percentage=332/500=66.4%
• 5 years agoHelpfull: Yes(15) No(0)
• Total increment = 12 - 2 + 7 = 17
  Total number of subjects = 5
  increment in % = 17/5 = 3.4%
  new percentage = 63 + 3.4 = 66.4%
• 5 years agoHelpfull: Yes(3) No(1)
• Sol:
  aggregate mark=63% of 5 subjects.
  63*5=315.
  changes of marks is 12-2+7=17.
  315+17=332.
  now percetage is (total 5 subjects so new value /500) = 332/500 = 66.4%.
  
  
  Hence Answer is 66.4% aggregated.
• 5 years agoHelpfull: Yes(2) No(0)
• +12-2+7=+17
  17/500*100=3.4
  New percentage =63+3.4=66.4%
• 5 years agoHelpfull: Yes(1) No(0)
• Marks before reevaluation 63×5=315
  
  After reevaluation 315+12-2+7=332
  
  332=x×500/100
  
  x=332/5=66.4
• 5 years agoHelpfull: Yes(0) No(1)
• suppose five subject are x1,x2,x3,x4,x5
  the (x1+x2+x3+x4+x5)/5=66
  
  so when x3 is math and increase mars by 12 the new value of x2 is =x2+12
  similare new x4=x4-2
  and new x5=x5+7
  
  then (x1+x2+(x3+12)+(x4-2)+(x5+7))/5=y
  (x1+x2+x3+x4+x5)/5+(12-2+7)/5=y
  
  63+(17)/5=y
  63+3.4=y
  y=66.4
• 5 years agoHelpfull: Yes(0) No(2)
• clearly the marks changed are in only three subjects .The total change in the marks is (12-2+7)=17 marks .the initial marks of girl is x*100/500 = 63 ->x=63*5=315.now the changed marks is 315+17 which is 3332 .then percentage will be 315 *100 /5 = 66.4%
• 5 years agoHelpfull: Yes(0) No(0)
• avg=sum of all sub/5
  63=x/5
  x=315
  on revaluation she got 12+7-2 is 17
  and 17 marks added to 315
  then it is 332,avg=332/5=66.4
• 5 years agoHelpfull: Yes(0) No(0)