Question

The product of 0.05 and 0.9 is ___.

• A. 4.5
• B. 0.45
• C. 0.045
• D. 0.0045

Answer 1

The correct option is C

0.045

$0.05=\frac{5}{100}$

$0.9=\frac{9}{10}$

$0.05\times 0.9=\frac{5}{100}\times \frac{9}{10}$

$=\frac{(5\times 9)}{1000}=\frac{45}{1000}$

$=0.045$