(b) 3893103. Explanation: 3897 × 999 =3897 ×(1000-1)=(3897 × 1000)-(3897 × 1) =3897000-3897=3893103

3897 × 999= ? · ABC26GN0171

Subject: General Aptitude · Chapter: Number System

$3897 \times 999=$ ?

(a)3883203

(b)3893103

(c)3639403

(d)3791203

(e)None of these

Answer

Answer (as printed): B

Explanation

$$\begin{aligned} 3897 \times 999 & =3897 \times(1000-1)=(3897 \times 1000)-(3897 \times 1) \\ & =3897000-3897=3893103 \end{aligned}$$

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

Study loop for Number System