In a race, there are 4 members in a team. Each member has to cover 5 km one after another. If the total time taken is 30 minutes, then what would have been the average speed?
1
50\(\frac{{km}}{{hr}}\)
2
40\(\frac{{km}}{{hr}}\)
3
50\(\frac{m}{{\sec }}\)
4
40\(\frac{m}{{\sec }}\)