A B C and D are four consecutive even numbers respectively…

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A, B, C and D are four consecutive even numbers respectively and their average is 65. What is the product of A and D?

  1. A. 3968
  2. B. 4092
  3. C. 4216
  4. D. 4352

E. None of these

Here is complete explanation of A B C and D are four consecutive even numbers respectively….

Solution(By ExamCraze Team)

Let x, x + 2, x + 4 and x + 6 represent numbers A, B, C and D respectively.
Then,
$$eqalign{ & Rightarrow frac{{x + left( {x + 2} right) + left( {x + 4} right) + left( {x + 6} right)}}{4} = 65 cr & Rightarrow 4x + 12 = 260 cr & Rightarrow 4x = 248 cr & Rightarrow x = 62 cr} $$
So, A = 62, B = 64, C = 66, D = 68
∴ A × D = 62 × 68 = 4216

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