Question

The smallest rational number by which ${\displaystyle \frac{1}{3}}$ should be multiplied so that its decimal expansion terminates with one place of decimal is

विकल्प

• ${\displaystyle \frac{1}{10}}$

• ${\displaystyle \frac{3}{10}}$

• 3

• 30

Answer 1

${\displaystyle \frac{3}{10}}$

Explanation;

Hint:

${\displaystyle \frac{1}{3}\times \frac{3}{10}=\frac{1}{10}}$

= ${\displaystyle \frac{1}{2\times 5}}$

It has terminating decimal expansion.