Aptitude - Numbers - Discussion

Discussion Forum : Numbers - General Questions (Q.No. 130)
130.
106 x 106 - 94 x 94 = ?
2400
2000
1904
1906
None of these
Answer: Option
Explanation:
106 x 106 - 94 x 94 = (106)2 - (94)2
= (106 + 94)(106 - 94)    [Ref: (a2 - b2) = (a + b)(a - b)]
= (200 x 12)
= 2400.
Discussion:
1 comments Page 1 of 1.

Nishika said:   3 years ago
Thanks.

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