If the average of 10, 12, n, and n is greater than 25, what is the least possible value of integer n?
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For this we have to suppose that the average of 10, 12, n and n is 25.
=> (10 + 12 + n + n)/4 = 25
=> 22 + 2n = 25 × 4
=> 22 + 2n = 100
=> 2n = 78
=> n = 78/2
=> n = 39
This implies that if average of 10, 12 n and n is greater than 25 then the least possible integral value of n is 40.
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