Correct Answer - Option 2 :

\(50\dfrac{1}{3}\) km/hr

**Given:**

Average speed of A = 50 km/hr

Average speed of B = 48 km/hr

Average speed of C = 52 km/hr

**Formula used:**

Distance = Speed × Time

Average speed = Total Distance/Total time

**Calculation:**

Distance covered by A in 1 hour = 50 km

Distance covered by B in 2 hours = 2 × 48

⇒ Distance covered by B in 2 hours = 96 km

Distance covered by C in 3 hours = 3 × 52

⇒ Distance covered by C in 3 hours = 156 km

Average speed = (50 + 96 + 156)/6

⇒ Average speed = 302/6

⇒ Average speed = \(50\dfrac{1}{3}\) km/hr

**∴ The average speed of the car is \(50\dfrac{1}{3}\) km/hr.**