Question

IATA travel along a straight line for first half time with a speed of 40 km per hour and second half time with speed of 60 km per hour speed of car is

Answer 1

The average speed of the car = 50 km/hr.

The car travels straight path for first half time and second half time. The average speed for the travel journey is calculated over total distance travelled and total time for the travel.

Given, speed1 = 40 km/hr and speed 2 = 60 km/hr.

Let us assume that the total time taken for the travel be x.

So, we have, distance travelled in first half be,  

Time taken for first half be time1 = half of total time

.

And, distance travelled in second half be,  

Time taken for second half be time2 = half of total time

Thereby, Average speed = total distance / total time

Total distance                                                            

Total time = x

Average speed .