Multiple choice

The ratio between the speed of a train and a car is 8 : 3. Also, a bus covers a distance of 480 km in 12 hours. The speed of the bus is five-seventh the speed of the train. How much distance will the car cover in 5 hours?

  1. 125 km

  2. 84 km

  3. 105 km

  4. None of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Bus speed = 480/12 = 40 km/h. Train speed = 40 * (7/5) = 56 km/h. Car speed = 56 * (3/8) = 21 km/h. Distance covered by car in 5 hours = 21 * 5 = 105 km.

AI explanation

The speed of the bus is 480 / 12 = 40 km/hr. Since the bus speed is five-sevenths of the train, the train's speed is 40 * (7 / 5) = 56 km/hr. Given the speed ratio of the train to the car is 8 : 3, the car's speed is 56 * (3 / 8) = 21 km/hr. Using the distance formula (Distance = Speed * Time), the car covers 21 * 5 = 105 km.