A student gets 70% in one subject, 80% in the other. To get an overall of 75% how much should get in third subject.

• ans is 75%
  let assume third subject mark is x
  so 80%+70%+x%/3=75%
  so x=75%
• 12 years agoHelpfull: Yes(8) No(0)
• 75%
  
  A student gets 70% in one subject, 80% in the other.
  Average of 2 subjects is 75% , if they have equal weightage.
  
  To get an overall of 75% , he should get 75 % in third subject to maintain same % age..if they have equal weightage.
• 12 years agoHelpfull: Yes(6) No(0)
• total marks in 2 subjects=150
  now suppose third subject marks=x
  then,((150+x)/300)*100
  Ans is=75.
• 10 years agoHelpfull: Yes(1) No(0)
• 70+80+x/3=75
  hence,
  75
• 12 years agoHelpfull: Yes(0) No(0)
• avg = (70+80+x)/3=75
  x=75%
  third subject gets 75%
• 7 years agoHelpfull: Yes(0) No(0)
• sum of 2 scores= 70+80= 150
  overall %= 75 x 3= 225
  score in 3rd subject = 225-150=75 answer
• 7 years agoHelpfull: Yes(0) No(0)
• total marks in 2 subjects=150
  now suppose third subject marks=x
  then,((150+x)/300)*100
  Ans is=75.
• 7 years agoHelpfull: Yes(0) No(0)
• 75
  But when 3rd sub is 50 marks
  That time 37.5
• 7 years agoHelpfull: Yes(0) No(0)