Question

Match the column (I) with column (II).

Column I Column II

• A. $10000$ metres
• B. $1000$ metres
• C. $100$ meters
• D. $1$ metres

Answer 1

$1$ kilometres $=1000$ metres
$\Rightarrow 10$ kilomters $=10\times 1000$ metres
$=10000$ metres

$1$ hectometres $=100$ metres
$\Rightarrow 10$ hectomters $=10\times 100$ metres
$=1000$ metres

$1$ decimetres $={10}^{-1}$
$=\frac{1}{10}$ metres
$\Rightarrow 1000$ decimters $=1000\times \frac{1}{10}$
$=100$ metres

$1$ milimetres $={10}^{-3}$
$=\frac{1}{1000}$ metres
$\Rightarrow 1000$ milimeters $=1000\times \frac{1}{1000}$
$=1$ metres