Time and Distance Practice Test 3 with solutions

Question : 32 of 40

Marks: +1, -0

With a uniform speed a car covers the distance in 8 hours. Had the speed been increased by 4 km/hr, the same distance could have been covered in

7 1/2

hours. The distance covered is:

Solution:

Let x km/hr be the actual speed of the car; then
x × 8 = (x + 4)

{15}/2

⇒ 16x – 15x = 60
∴ x = 60
Hence, distance covered = 60 × 8 = 480 km

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