Average of 5 number is 12. If four of the numbers are 19, 16, 13 & 9, then 5th number will be

1) 1
2) 3
3) 5
4) 6
5) 8
6) 9
7) 10
8) 12
9) 13
10)15

• 19 + 16 + 13 + 9 + 3 = 60
  60 / 5 = 12
  Ans is 3
• 9 years agoHelpfull: Yes(2) No(0)
• Avg=sum/ no.
  12=(57+x)/5
  60= 57+x
  x=3
• 9 years agoHelpfull: Yes(2) No(0)
• first take four nos. and find difference with 12
  
  1. 19-12=7
  2. 16-12=4
  3. 13-12=1
  4. 9-12=-3
  
  add all differences.that is 9. just subtract that from 12. It is 3.
• 9 years agoHelpfull: Yes(0) No(0)
• 19+16+13+9-60=3
  
• 9 years agoHelpfull: Yes(0) No(0)
• 2)3
  by manually solving
• 9 years agoHelpfull: Yes(0) No(0)
• 5th number=3
  let us consider number as x
  then,
  19+16+13+9+x/5=12
  =57+x/5=12
  x=12*5-57
  =60-57=3
  5th number=3
• 7 years agoHelpfull: Yes(0) No(0)
• 12×5-(19+16+13+9)=3
  Ans. 2) 3
• 7 years agoHelpfull: Yes(0) No(0)
• 5th no. = (12*5-(19+16+13+9))=3
• 7 years agoHelpfull: Yes(0) No(0)
• Total Sum of number 12*5=60
  i have already 4 number
  then 5th Number will be 60-(19+13+16+9)=3
• 4 years agoHelpfull: Yes(0) No(0)