Question

Mean of first n odd natural numbers is

2

,

81

n

then find ‘n’.​

Answer 1

2 =>

2 = x + 2x+1/2

4 = 3x + 1

3 = 3x

x = 1 ..

subs. x = 1

2x+1 = 2(1) +1 = 3 1,3 n= 2

now,

formula = 2n-1

2n - 1 = 81

2n = 82

n = 41 .. :) plz mark as BRANIEST !!