Chris drove his taxi from A to B via the highway. He stopped at C to pick up some goods before proceeding to B. He drove from A to C at an average speed of 100km/h over a distance of 60km.

If the average speed of his taxi from A to B is 110km/h over a distance of 220km, calculate the average speed of Chris' taxi from C to B.


***Plz help me!! huhuhu***