A motor car goes to a place at a speed of 23 km/h and returns at a speed of 33 km/h. The average speed (in km/h) of the motor car in the entire journey is:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e.
Average speed when distance is same:
Average speed = (2 × speed1 × speed2) ÷ (speed1 + speed2)
= (2 × 23 × 33) ÷ (23 + 33)
= (1518) ÷ 56
=