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Question
What is the value of 10062 −1007 × 1005 + 1008 × 1004 − 1009 × 1003?
Options
6
3
12
24
MCQ
Solution
6
Explanation:
(1006)2 − 1007 × 1005 + 1008 × 1004 − 1009 x 1003
⇒ (1006)2 − (1006 + 1) (1006 − 1) + (1006 + 2) (1006− 2) − (1006 + 3) (1006 − 3)
⇒ (1006)2 − (1006)2 + 1 + (1006)2 − 4 − (1006)2 + 9
= 6
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Simplification (Entrance Exam)
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