A SUV car travels at a certain average speed for a distance of \( 30\ km\) and then travels a distance of \(40 \ km\) at an average speed of \( 10\ km/h\) more than its original speed. If it takes \(2\) hours to complete the total journey, what is its original average speed?
Answer:
The original average speed of the SUV car is \(km/h\).