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QUESTION
Q
If the average of x, x − 8, x + 2 and 4x + 4 is 10, then the product of the numbers is ?
Solution
Sum of the numbers is = 10 × 4 = 40
x + (x − 8) + (x + 2) + (4x + 4) = 40
7x − 2 = 40
Therefore, x =...
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