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**A man covers half of his journey at 6 km/h and the remaining half at 3 km/h. His average speed is**

A. A. 9 km/h
B. 4.5 km/h
C. 4 km/h
D. 3 km/h
**Answer: Option C**

## Show Answer

Solution(By Apex Team)

Average Speed
$\begin{array}{l}
=\frac{2 x y}{x+y} \\
=\frac{2 \times 6 \times 3}{6+3} \\
=\frac{36}{9} \\
=4 \mathrm{kmph}
\end{array}$