Question

Sort in descending order.
(Largest at the bottom)

• A. 1 km
• B. 1 m
• C. 1 cm
• D. 1 mm

Answer 1

We know that 1000 metres make 1 kilometre.
$\therefore 1\text{km}>1\text{m}$

100 centimetres form a metre.
$\therefore 1\text{m}>1\text{cm}$

10 millimetres make a centimetre.
$\therefore 1\text{cm}>1\text{mm}$

Thus, the measurements in descending order is given by

$1\text{km}>1\text{m}>1\text{cm}>1\text{mm}.$