Ramesh got an overall average of 52 marks in an examination having five papers. He applied for re-evaluation and got the mark for one of the papers revised from 45 to 60. What is the new overall average.
a) 55
b) 67
c) 52
d) 57
e) 60

• Mark =average *no of paper
  = 52*5 =260
  =260+15 =275
  Mark= 275/5=55
• 7 years agoHelpfull: Yes(17) No(0)
• the difference in old and previous mark is 15(60-45)
  15/5=3
  new average=52+3=55
• 7 years agoHelpfull: Yes(7) No(0)
• Total=avg*no of students
  Total=52*5=275
  Avg=275/5=55
• 7 years agoHelpfull: Yes(3) No(6)
• Formula: New avg=old avg+diff of values/total
  Here x = 52+60-45/5
  x = 52+15/5
  x = 55
• 7 years agoHelpfull: Yes(2) No(0)
• 55 wld be the answer
  55 = 52 + (60-45)/5
• 7 years agoHelpfull: Yes(0) No(1)
• (a+b+c+d+e)/5=52
  After revaluation he get 15 marks more on one subject:e+15
  Avg of 15:15/5=3
  Overall average :52+3=55
• 7 years agoHelpfull: Yes(0) No(0)
• 55 is new average.
• 7 years agoHelpfull: Yes(0) No(0)
• let sum of marks=x
  x/5=52 (given)
  new avr = (x-45+60)/5
  =x/5+3
  =52+3
  =55
• 7 years agoHelpfull: Yes(0) No(0)
• a)55
• 7 years agoHelpfull: Yes(0) No(0)
• 52*5=260
  260+15=275
  275/5=55
• 6 years agoHelpfull: Yes(0) No(0)
• Over all 15 marks increased.
  15(diff. of marks increased)/5(no. of sub)=3.
  52+3=55.
• 6 years agoHelpfull: Yes(0) No(0)
• 52*5=260
  60-45=15
  260+15=275
  275/5=55
• 6 years agoHelpfull: Yes(0) No(0)
• Revised paper mark is 60-45=15,
  No of subjects =5,
  Avg mark =52
  Then , new avg = avg mark + (revised paper mark / no of subject)
  New avg mark = 52+ (15/5)
• 6 years agoHelpfull: Yes(0) No(0)
• total=avg*papers
  total=52*5=260
  now new sum is 260+15=275
  new avg=275/5=55
• 6 years agoHelpfull: Yes(0) No(0)
• let those numbers be a,b,c,d,e
  (a+b+c+d+e)/5=52
  a+b+c+d+e=260
  by adding new marks and subtracting old marks
  a+b+c+d+e=275
  avg=275/5=55
• 6 years agoHelpfull: Yes(0) No(0)
• 52*5=260
  260+15=275
  275/5=55
• 5 years agoHelpfull: Yes(0) No(0)
• 52marks in 5papers = 52*5=260
  after revalution he got 45-60 marks= difference=15
  260+15=275
  marks=275/5=55
• 5 years agoHelpfull: Yes(0) No(0)
• 55 is the ans
• 5 years agoHelpfull: Yes(0) No(0)
• total marks obtain= 52x5=260
  marks increase after re-evalutionn= 60-45=15
  total marks now= 260+15=275
  average marks now= 275/5= 55 (ans)
• 5 years agoHelpfull: Yes(0) No(0)
• as there are 5 paper in total and average score is 52 then he will get total marks=52*5=260 marks.
  if one of the paper he got revised his marks from 45 to 60.then more marks will be(60-45)=15
  there fore total marks =260+15=275
  so the average of 5 pape r is = 275/5=55
• 5 years agoHelpfull: Yes(0) No(0)