Question

rocket Travels at 40 km per hour for the first third of his journey at 35 km per hour for the second third of his journey and at 42 km per hour for the final third of his journey what is its average speed​

Answer 1

given that total distance is 40+35+42=117 is the total distance let's assume that time be 3 hours from the given data then the answer is 117divided by 3 is equals to 39 km per hour is the average speed don't forgot to thanks