Question

place solve the answer​

Answer 1

Answer:

N=9

Step-by-step explanation:

let the number of natural numbers be n

then then the sum of all natural numbers till n is given by n(n+1)/2

also the mean = sum / no of observation

mean = n(n+1)/2n

5n/9 = (n+1)/2

10n = 9n + 9

n = 9

CHEERS MATE,. PLEASE MARK BRAINLIEST