Multiple choice

Kovind and Dinesh travel a distance of 60 km such that the speed of Kovind is faster than Dinesh. The sum of their speeds is 80 km/h and the total time taken by both is 3 hours 12 minutes. Find the speed of Kovind (in km/h) ?

  1. 40

  2. 30

  3. 50

  4. 45

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

Let Kovind's speed be k. Then Dinesh's speed is 80-k. Total time equation: 60/k + 60/(80-k) = 3.2 hours. Solving gives k = 50 km/h (faster speed).