Question

A car moves with a speed of 45 km/hr for 1800 sec from point A to point B, 30 km/hr for 60 mins from point B to point C and 40 km/hr for two hours from point C to point D. Calculate the average speed of the car from point A to point C.

Answer 1

Answer:

Average Speed is important to understand the rate at which a journey takes place. Throughout a journey, the speed may vary from time to time. In that case, finding the average speed becomes important to have an estimate of the rate at which the journey is completed. Here we will see some special cases and shortcuts that we can use to find the average speed in less than a minute. Let us begin by calculating the formula for the average speed and then solve some examples with the help of this formula