A person travels by a motorcycle to a place at an average speed of 60 km/h and returns at an average speed of 30 km/h. Find his average speed (in km/h) for the whole journey.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 40.
Average speed = (2 × 60 × 30) / (60 + 30)
= (3600) / 90
= 40 km/h