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1] a car covers the first half of the distance between two places at a speed of 40 km/h and the second half at 60 km/h .what is the average speed of the car

2]a car goes from town A to another town B with a speed of 40 km/h and returns back to the town A with a speed of 60 km/h.calculate the average speed during the whole journey.

3] a girl moves with a speed of 6 km/h for 2hrs and with the speed of 4km/h for the next 3hrs.

Find the average speed of the girl and the total distance moved.

2
sry the answer is wrng

the formaul is 2xy/x+y

48km/hr is answer for the first one

48km/hr is secound one

4.8km/hr and total distance is 24

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