0.04 0.0162 is equal to

ABC26GN0663 · Decimal Fractions

Subject: General Aptitude · Chapter: Decimal Fractions · Exam: · Marks: · Difficulty:

$0.04 \times 0.0162$ is equal to

(a)$6.48 \times 10^{-3}$

(b)$6.48 \times 10^{-4}$

(c)$6.48 \times 10^{-5}$

(d)$6.48 \times 10^{-6}$

Answer

Answer (as printed): B

Explanation

$4 \times 162=648$. Sum of decimal places $=6$. $$\therefore \quad 0.04 \times 0.0162=0.000648=6.48 \times 10^{-4} \text {. }$$

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