Khalil drove 120 kilometers in a certain amount of time. What was his average speed, in kilometers per hour, during this time?

(1)If Khalil had driven at an average speed that was 5 kilometers per hour faster, his driving time would have been reduced by 20 minutes.

(2)If Khalil had driven at an average speed that was 25% faster, his driving time would have been reduced by 20%.