Question

A car completes a certain journey in 6 hours at a speed of 50 km/h.
By how much the speed of the car must be increased to cover the same distance in 9/2
hours?
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Answer 1

Answer:

Step-by-step explanation:

Answer 2

Step-by-step explanation:

distance = speed*time = 50*6 = 300 km

speed to cover in 9/2 hrs , v= 300/(9/2) =200/3 =66.66 km/hr

increase in speed = 66.66-50 = 16.66 km/hr