Question

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
3 mi
3 1/2 mi
4 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
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Explanation:

Step1: Convert km to miles (1st line)

We use the conversion factor $1\ \text{km} \approx 0.6214\ \text{mi}$.

• $0.25\ \text{km} = 0.25 \times 0.6214 \approx 0.125\ \text{mi}$
• $1\ \text{km} \approx 0.6214\ \text{mi}$
• $2.25\ \text{km} = 2.25 \times 0.6214 \approx 1.4\ \text{mi}$
• $3\ \text{km} = 3 \times 0.6214 \approx 1.864\ \text{mi}$
• $3.5\ \text{km} = 3.5 \times 0.6214 \approx 2.175\ \text{mi}$

Step2: Convert miles to km (2nd line)

We use the conversion factor $1\ \text{mi} \approx 1.6093\ \text{km}$.

• $0.25\ \text{mi} = 0.25 \times 1.6093 \approx 0.402\ \text{km}$
• $1\ \text{mi} \approx 1.6093\ \text{km}$
• $1.75\ \text{mi} = 1.75 \times 1.6093 \approx 2.816\ \text{km}$
• $2.5\ \text{mi} = 2.5 \times 1.6093 \approx 4.023\ \text{km}$

Step3: Convert meters to km (3rd line)

We use $1000\ \text{m} = 1\ \text{km}$, so $1\ \text{m} = 0.001\ \text{km}$.

• $250\ \text{m} = 250 \times 0.001 = 0.25\ \text{km}$
• $500\ \text{m} = 0.5\ \text{km}$
• $900\ \text{m} = 0.9\ \text{km}$
• $1500\ \text{m} = 1.5\ \text{km}$
• $2200\ \text{m} = 2.2\ \text{km}$

Answer:

1. (Kilometer to mile line, left to right): $\boldsymbol{0.125\ \text{mi}}$, $\boldsymbol{0.621\ \text{mi}}$, $\boldsymbol{1.4\ \text{mi}}$, $\boldsymbol{1.864\ \text{mi}}$, $\boldsymbol{2.175\ \text{mi}}$
2. (Mile to kilometer line, left to right): $\boldsymbol{0.402\ \text{km}}$, $\boldsymbol{1.609\ \text{km}}$, $\boldsymbol{2.816\ \text{km}}$, $\boldsymbol{4.023\ \text{km}}$
3. (Meter to kilometer line, left to right): $\boldsymbol{0.25\ \text{km}}$, $\boldsymbol{0.5\ \text{km}}$, $\boldsymbol{0.9\ \text{km}}$, $\boldsymbol{1.5\ \text{km}}$, $\boldsymbol{2.2\ \text{km}}$