Question

for each line, you are asked to click in a box at a given length on the line. when you click in a box, the value you are asked for will appear. if you decide that the box you clicked on is not the correct length, click in the box again and the value will disappear. then, click in the box that you think is correct. click in the box with the blue arrow pointing to 1 kilometer on this line: 0 1/2 mi 1 mi 1 1/2 mi 2 mi 2 1/2 mi click in the box with the blue arrow pointing to 1 mile on this line: 0 1/2 km 1 km 1 1/2 km 2 km 2 1/2 km click in the box with the blue arrow pointing to 250 meters on this line: 0 1/2 km 1 km 1 1/2 km 2 km 2 1/2 km

Explanation:

Step1: Convert km to miles

We use the conversion factor $1\ \text{km} \approx 0.6214\ \text{mi}$.
$1\ \text{km} \approx 0.6214\ \text{mi}$, which is closest to $\frac{1}{2}\ \text{mi}$ (0.5 mi) but between 0 and $\frac{1}{2}\ \text{mi}$. On the first number line, this corresponds to the first box (between 0 and $\frac{1}{2}\ \text{mi}$).

Step2: Convert miles to km

We use the conversion factor $1\ \text{mi} \approx 1.6093\ \text{km}$.
$1\ \text{mi} \approx 1.6093\ \text{km}$, which is between $1\ \text{km}$ and $1\frac{1}{2}\ \text{km}$. On the second number line, this corresponds to the third box (between $1\ \text{km}$ and $1\frac{1}{2}\ \text{km}$).

Step3: Convert meters to km

$250\ \text{m} = 0.25\ \text{km}$, which is between 0 and $\frac{1}{2}\ \text{km}$. On the third number line, this corresponds to the first box (between 0 and $\frac{1}{2}\ \text{km}$).

Answer:

1. For 1 kilometer: The first box (between 0 and $\frac{1}{2}\ \text{mi}$)
2. For 1 mile: The third box (between $1\ \text{km}$ and $1\frac{1}{2}\ \text{km}$)
3. For 250 meters: The first box (between 0 and $\frac{1}{2}\ \text{km}$)