Question

with a uniform speed a car covers a distance in 8hours. If the speed is increased by 3 km/hr the same distance will be
covered in 7hours. Calculate the distance covered.

Answer 1

Let the speed of the car be x.
And we know that distance = speed × time.
Therefore the distance would be x * time.

IN BOTH THE CASES DISTANCE IS SAME.

Distance = speed × time
x * 8 = 8x = 7 * (x + 3) = 7x + 21
=> 8x = 7x + 21
=> x = 21.

The speed of car is 21 km/h.

And therefore distance = 21 * 8 = 168 km.



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