A car travels from town A to town B at an average speed of 60 km/hr and returns from town B to town A at an average speed of 40 km/hr. What is the average speed for the entire trip?
Show answer & explanation
Correct answer: B
Explanation
Given:
Speed from A to B = 60 km/h
Speed from B to A = 40 km/h
Formula:
Average speed for the same distance
= (2 × v₁ × v₂) / (v₁ + v₂)
Average speed = (2 × 60 × 40) / (60 + 40) = 48 km/h