Question

if mean of first n natural number is 5n/8 then find n​

Answer 1

Answer:

Answer will be n= 8.....

Step-by-step explanation:

if we solve the Xbar then we get 5*n/8is eliminate by 8 so the n will be 8......

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Answer 2

Answer:

mean of n natural numbers = (n + 1)/2.

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

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

9n + 9 = 10n

9 = n.

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