Q: A car travels a total distance L. It travels half the distance with speed v₁ and the other half with speed v₂. The average speed of the car is:
(a)(v₁ + v₂)/2
(b)2v₁v₂/(v₁ + v₂)
(c)(v₁ + v₂)L/(2v₁v₂)
(d)0
Correct Answer: (b)
The correct answer is (b): 2 v1 v2 / (v1 + v2). Subject: Indian Economy | Sub-topic: General Note: This answer was determined through AI-based research. Verify against the official answer key when available.