A man covers the three successive 5 kilometers at the speed of 10 km/hr, 15 km/hr and 20 km/hr. Find the average speed of the man.
1
\(11\frac{{11}}{{13}}\) Km/hr
2
\(13\frac{{11}}{{13}}\) Km/hr
3
\(9\frac{1}{{13}}\) Km/hr
4
\(10\frac{9}{{13}}\) Km/hr