Raghav completes a certain journey by a car. If he covers 25% of the distance at the speed of 30kmph, 50% of the distance at 45km/h and the remaining of the distance at 15 kmph, his average speed is:
1
23
2
28
3
43
4
53
Raghav completes a certain journey by a car. If he covers 25% of the distance at the speed of 30kmph, 50% of the distance at 45km/h and the remaining of the distance at 15 kmph, his average speed is: