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QUESTION
Q
The average of four consecutive numbers A, B, C and D respectively is 65.5. What is the product of A and C ?
Solution
Let A = x
Since A, B, C and D are consecutive numbers
B = x + 1; C = x + 2; D = x + 3
Given average of A, B, C and D is = 65.5
⇒ A + B + C...
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