Question

On saturday, Dan ran 0.6 km, and on sunday he ran 750 m. Which day did he run farther and by how much? (State your answer in km)

• A. on saturday by 0.2 km
• B. on saturday by 0.15 km
• C. on sunday by 0.2 km
• D. on sunday by 0.15 km

Answer 1

The correct option is D on sunday by 0.15 km

We know, 1 km = 1000 m
$\Rightarrow \text{1 m}=\frac{1}{1000}\text{km}$

$\Rightarrow 750\text{m}=\frac{750}{1000}\text{km}$

$\Rightarrow 750\text{m}=0.75\text{km}$
$\Rightarrow$ Dan ran 0.6 km on saturday and 0.75 km on sunday
$\therefore$ He ran farther on sunday by 0.15 km.