Lessons

General Aptitude
9.1 Numbers - General Questions

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Q.

{(476 + 424)2 - 4 x 476 x 424} = ?

View Answer

Correct choice: C

Explanation:

Given Exp. = [(a + b)2 - 4ab], where a = 476 and b = 424
  = [(476 + 424)2 - 4 x 476 x 424]
  = [(900)2 - 807296]
  = 810000 - 807296
  = 2704.
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