If the sum of a few numbers is 450 and their mean is 50 and if another number 100 is
included, the mean would become ?

• sum of few numbers are
  
  50+50+50+50+50+50+50+50+50+50=450
  
  their mean =50
  a/q to question ,100 is included to sum of number then ,
  
  
  100+50+50+50+50+50+50+50+50+50= 550
  
  then mean = 550/10 = 55
  
  so, the final ans will be 55.
  
• 8 years agoHelpfull: Yes(1) No(2)
• Mean = Average
  Average = Sum of terms / No. of terms
  50 = 450/x
  x= 9
  450+100= 550
  9+1 = 10
  new mean = 550/10=55
• 6 years agoHelpfull: Yes(1) No(0)
• sum of x numbers =450
  mean of x numbers= 450/x =50
  thus, x = 9
  if 100 is added to 450, new sum = 450+100=550
  new mean = 550/10
  =55 ans
• 5 years agoHelpfull: Yes(0) No(0)