Q. 3 numbers have an average of 30.if the two numbers are 14 and 28, third number is ?

• 3 * 30 -(14+28) = 48
• 11 years agoHelpfull: Yes(4) No(0)
• total of 3 numbers=30*3=90
  third number=total-first number-second number
  third number=90-14-28=48
• 9 years agoHelpfull: Yes(2) No(0)
• Let three number be a,b,c so average of a,b,c = (a+b+c)/3=30
  so a+b+c=30*3=90
  Where a=14,b=28 so that a+b=42 put these value in equation 1 42+c=90
  
  so that c= 48 ans
• 9 years agoHelpfull: Yes(1) No(0)
• (14+28+x)
  -------------===== 30
  3
  
  42+X=>90=> X=48 answer---- 48
• 9 years agoHelpfull: Yes(0) No(0)
• let the numbers be x,y and z
  x=14 and y=28
  then (x+y+z)/3=30
  42+z=90
  z=48
• 9 years agoHelpfull: Yes(0) No(0)
• Ans :48..... 14+28+x=30*3 gives x=48
  
• 9 years agoHelpfull: Yes(0) No(0)
• (x+y+z)/3=30
  x+y+z=90
  14+28+z=90
  z=48
• 8 years agoHelpfull: Yes(0) No(0)
• 52+x=90
  x=38
• 7 years agoHelpfull: Yes(0) No(1)
• As average of 3 no= 14+28+x/3 so x=48
• 6 years agoHelpfull: Yes(0) No(0)