Read the Assertion and Reason given below and choose the correct answer:
1. Assertion (A): A vehicle's odometer can be used to find the speed at which the vehicle is travelling.
Reason (R): An odometer measures the distance travelled by a vehicle.
Reason (R): An odometer measures the distance travelled by a vehicle.
2. Assertion (A): If the total distance travelled by a vehicle and the total time taken are known, its average speed can be calculated.
Reason (R): The formula for average speed is total distance covered divided by total time taken.
Reason (R): The formula for average speed is total distance covered divided by total time taken.