The average of first 50 natural numbers is :

a. 12.25
b. 21.25
c. 25
d. 25.5

• First 50 number means
  from 1-50
  sum of first 50 number wil be
  =(50/2)(2*1+(50-1)*1)
  =25*51
  =1275
  
  so average of the 50 number=1275/50= 25.5
• 9 years agoHelpfull: Yes(5) No(0)
• sum of first 50 natural no. is=50*(50+1)/2=25*51
  avg is=25*51/50=26.50
• 12 years agoHelpfull: Yes(4) No(8)
• The average of 1st 50 natural numbers, Natural numbers starts with 1,2......
  since we have to find 1st 50 numbers avg
  hence n=50
  50*(50+1)/2
  50*(51)/2
  25*(51) ->(cancellation between 2 and 50 hence 50 becomes 25)
  1275
  To fine the avg of 50 numbers
  avg= sum of the numbers/total numbers
  1275/50
  25.50
• 8 years agoHelpfull: Yes(2) No(0)
• the sum of n natural numbers is (n(n+1))/2
  hence (50(51))/2 = 1275
  to get the average 1275/50=25.5
• 8 years agoHelpfull: Yes(0) No(0)
• sum of first 50 natural no is 5050 and average is 1275/50 = 25.5
• 6 years agoHelpfull: Yes(0) No(0)
• The average of n natural numbers =n+1/2
  =50+1/2
  =51/2
  =25.5
• 6 years agoHelpfull: Yes(0) No(0)
• 25.5
  50*51/2/50
• 6 years agoHelpfull: Yes(0) No(0)