Q. If a+3a is 4 less than 3b+b then what is average of a+b?

• a+3a=b+3b-4
  or 4a+4=4b
  or 4(a+1)=4b
  or b=(a+1)
  so average of (a+b)=(a+b)/2=(a+a+1)/2=(a+1/2)
• 10 years agoHelpfull: Yes(13) No(0)
• a+3a+4=b+3b
  4a+4=4b
  a=1=b
  for avvg:
  (a+b)/2=(a+a+1)/2=a+1/2
  
• 10 years agoHelpfull: Yes(3) No(0)
• a+3a-(3b+b)=4
  4a+4b=4
  a+b=1
  Ans=1
• 10 years agoHelpfull: Yes(0) No(8)
• ans=1
  a+3a+4=3b+b
  4a+4=4b
  so we get a=b=1
• 9 years agoHelpfull: Yes(0) No(0)
• a+3a+3b+b=4 i.e a+b=1
  
  So, a+b/2=1/2
• 7 years agoHelpfull: Yes(0) No(0)