Multiple choice

The ratio of the speeds of two cars is 4:3. If the first car covers a distance of 480 km in two hours less than the second car, then find the speed of the first car.

  1. 50 kmph

  2. 80 kmph

  3. 70 kmph

  4. 60 kmph

  5. None of these

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

Let speeds be 4x and 3x. Time for car 1 = 480/4x = 120/x. Time for car 2 = 480/3x = 160/x. Difference = 160/x - 120/x = 40/x = 2 hours. So x = 20. Speed of first car = 4x = 80 kmph.