1904 × 1904= ? · ABC26GN0174

Subject: General Aptitude · Chapter: Number System

$1904 \times 1904=$ ?
(a)3654316
(b)3632646
(c)3625216
(d)3623436
(e)None of these
Answer
Answer (as printed): C
Explanation
$$\begin{aligned} 1904 \times 1904 & =(1904)^{2}=(1900+4)^{2} \\ & =(1900)^{2}+4^{2}+2 \times 1900 \times 4 \\ & =3610000+16+15200=3625216 . \end{aligned}$$

Explanation as extracted from the printed page; notation may be imperfect.

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