Question

if the mean of first n natural number is 3n/5 then value of n is solve an explain​

Answer 1

Answer:

The value of n = 5

Step-by-step explanation:

Given,

• Mean of first n natural numbers = 3n/5

We know that,

• Mean of n natural numbers = (n+1)/2

⇒  (n+1)/2 = 3n/5

⇒ 5(n + 1) = 2(3n)

⇒ 5n + 5 = 6n

⇒ n = 5

Therefore the value of n = 5