A cyclist goes from a place to another and returns by the same route. He pedals his way uniformly with speed $u$ while going and with speed $v$ while returning. The average speed of his journey is
A cyclist goes from a place to another and returns by the same route. He pedals his way uniformly with speed $u$ while going and with speed $v$ while returning. The average speed of his journey is
- A
$\frac{u+v}{2}$
- B
$\frac{u-v}{2}$
- C
$\frac{1}{\frac{1}{2}\left(\frac{1}{u}+\frac{1}{v}\right)}$
- D
$\frac{1}{\frac{1}{2}\left(\frac{1}{u}-\frac{1}{v}\right)}$
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