Two cities, Delhi and Jaipur, are 360 km apart. A car goes from Delhi to Jaipur at a speed of 80 km/h and returns to Delhi from Jaipur using the same route at a speed of 120 km/h. What is the average speed of the car?

92 km/h 84 km/h 88 km/h 96 km/h

96 km/h

Average speed  = \(\frac{2 ×S1 × S2}{S1 + S2}\)  = \(\frac{2 × 80  × 120  }{80 + 120 }\) = 96 km/h