Rahul obtained 12 marks more than that of tanvi. If the ratio of their marks is 3:4 , find the sum of their marks?

• ans: 84
  
  tanvi's marks + 12 = rahul's marks,
  
  total marks say 3x+4x
  and 4x-3x = 12 ==> x=12,
  tanvi = 36, rahul = 48.
  
  therefore total = 36+48 = 84
  
• 9 years agoHelpfull: Yes(3) No(1)
• x/(x+12) = 3/4
  4x = 3x +36
  x = 36
  36+12= 48
  sum of marks be 48+36 = 84
• 9 years agoHelpfull: Yes(2) No(0)
• marks obtained by tanvi= x
  marks obtained by rahul= x+12
  ratio of there marks = 3/4
  ==> x/(x+12)= 3/4
  ==> 4x=3x+36
  ==> x= 36
  so total marks obtained by rahul and tanvi = x+(x+12) = 36+36+12 = 84
• 9 years agoHelpfull: Yes(2) No(0)
• 4x-3x=12
  x=12
  mark of Rahul & tanvi = 36+48 = 84
• 9 years agoHelpfull: Yes(2) No(1)
• tanvi's mark=x
  rahul's mark=x+12
  (x+12)/x=3/4
  x=48
  48+60=128
  ans:128
  
• 9 years agoHelpfull: Yes(1) No(3)
• let tanvi marks be x and so rahul marks become 12+x
  also give rato=3:4=(12+x):x
  so , 4x=36=3x
  x=36 and rahul marks=48 their sum=84
• 9 years agoHelpfull: Yes(1) No(1)