Solve the below given problem:
 
A car travels  110 \(km\) in the first 2 hours of a journey and 157 km in the next 4 hours.
 
a) Calculate the total distance travelled.
b) Calculate the total time taken.
c) Find the average speed of the car for the entire journey.
 
a) The total distance travelled by the car is \(=\) \(km\)
b) The total time taken by the car to complete the journey \(=\) \(h\)
c) The average speed of the car for the entire jourey \(=\) \(m/s\)
 
[Note: Enter the answer in two decimal values]