A car covers a distance of 690 km in 30 h. What is the average speed of the car?
Answer: (2) 23 km/h
The distance covered by a car = 690 km
Time taken by a car to cover distance 690 km = 30 hr.
Then, the speed of the car = 690/30
= 23 km/h
Hence, the answer is (2) 23 km/h.