Aptitude | Arithmetic Aptitude 4 | Question 6

If the average of four consecutive odd numbers is 12, find the smallest of these numbers?

(A) 5
(B) 7
(C) 9
(D) 11


Answer: (C)

Explanation:

Let the numbers be x, x+2, x+4 and x+6
Then (x + x + 2 + x + 4 + x + 6)/4  = 12
∴ 4x + 12 = 48
∴ x = 9 


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