Rachin travels a distance at 60 km/hr for 2 hours and 80 km at 40 km/hr. Find the
average speed of Rachin (in km/hr).
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 50 .
Average speed = total distance ÷ total time
Rachin travels:
60 km/h for 2 hours → covers 60×2 = 120 km
Then covers 80 km at 40 km/h → time = 80 ÷ 40 = 2 hours
Total distance = 120 + 80 = 200 km
Total time = 2 + 2 = 4 hours
Average speed = 200 ÷ 4 = 50 km/h