Question

if mean of first n natural no is 5n/9 than n=

Answer 1

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нєяє ιѕ уσυя αиѕωєя fσя уσυя qυєѕтισи:)


qυєѕтισи:


if mean of first n natural no is 5n/9 than n=

αиѕωєя:

Given;

Mean of first n Natural numbers is n+1/2 

According the given question,we get

5n/9 = n+1/2

10n = 9n + 1

10n - 9n = 1

n = 1
Therefore the number of terms is 1


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