Question

Arrange the following values in descending order.

• A. 5 km
• B. 500 m
• C. 50 m
• D. 5 cm

Answer 1

Let us first convert the measurements into the same unit.

We know that $1\text{km}=1000\text{m}.$
$\Rightarrow 5\text{km}=5\times 1000\text{m}=5000\text{m}$

But, $1\text{m}=100\text{cm}.$

$\therefore 5000\text{m}=5000\times 100\text{cm}$$=5,00,000\text{cm}$

and

$500\text{m}=500\times 100\text{cm}$
$=50,000\text{cm}$

Also, $50\text{m}=50\times 100\text{cm}$
$=5,000\text{cm}.$

$5\text{cm}<5,000\text{cm}<50,000\text{cm}$$<5,00,000\text{cm}$

$\therefore 5\text{cm}<50\text{m}<500\text{m}<5\text{km}$