Question

The distance covered in half marathon is approximately:

• A. 21 km
• B. 42 km
• C. 11 km
• D. 7.5 km
• E. 5 km

Hint:

Remember: Full marathon = 42.195 km, Half marathon = 21.0975 km. These are international standard race distances.

Answer 1

The Correct Option is A

Step 1: Recall standard marathon distance.
A full marathon is standardized at 42.195 km.
Step 2: Define half marathon.
By definition, a half marathon is half of this: \[ \frac{42.195}{2} = 21.0975 \, \text{km}. \] Step 3: Approximation.
This is approximately 21 km, which matches option (A).
\[ \boxed{A \text{ 21 km}} \]