Question

Arrange the following values in ascending order.

• A. $500$ cm
• B. $5000$ m
• C. $3$ km
• D. $0.6$ km

Answer 1

Let us first convert the measurements to centimetres.

We know that $1\text{km}=1000\text{m}.$
$\Rightarrow 3\text{km}=3\times 1000\text{m}=3000\text{m}$

Similarly, $0.6\text{km}=0.6\times 1000\text{m}=600\text{m}.$

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

$\therefore 3000\text{m}=3000\times 100\text{cm}$$=3,00,000\text{cm}$

and

$600\text{m}=600\times 100\text{cm}$
$=60,000\text{cm}$

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

$500\text{cm}<60,000\text{cm}<3,00,000\text{cm}$$<5,00,000\text{cm}$

$\therefore 500\text{cm}<0.6\text{km}<3\text{km}<5000\text{m}$