Correct Answer - Option 4 : 300
Given∶
A car travels 1 / 3 of a distance in 2 hours, 1 / 4 of remaining in 1 hour and remaining in 3 hours.
Average speed of the car in the whole journey is 50 km / hr
Formula used∶
Average speed = Total distance Travelled / total time
Calculations∶
Let the total distance be x
And the total time = 1 + 2 + 3 = 6 hr
Average speed = \(\frac{{\rm{x}}}{6}\) ---(1)
Since average speed is 50 km / hr, on equating equation (1) with 50 km / hr, we get
⇒ x = 300 km