Question
If average of first 10 numbers is (n – 23) and the sum
of remaining number is 925. Find the value of ‘n’, if the average of 20 numbers is ‘n’.ÂSolution
According to the question, => 20n = 10 × (n – 23) + 925 => 20n - 10n = 925 – 230 => n = 69.5
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