Ram drives from A to B by car at 90 km/h. He goes to C from B by bike at 60 km/h. The distance between A and C is 200 km, while the average speed between A and C is 75 km/h. What is the distance traveled by car?

Explanation

Distance between A and C is 200 km. Ram travelled from A to B in his car at 90 km/h and B to C in his bike at 60 km/hr. Let us assume that he covered x km in his car and (200 – x) km in his bike. Average speed of Ram over the whole journey = 75 km/h ⇒ 200 / (x/90 + (200 – x)/60) = 75 ⇒ x = 120 km.