Time and Distance Practice Test 1 with solutions

Question : 16 of 40

Marks: +1, -0

A motorist covers a certain distance at a average speed of 48 km/h in 45 minutes. What speed in km/h he must maintain to cover the same distance in 30 minutes?

66 km/h
79 km/h
80 km/h
72 km/h

Validate

Solution:

Let required speed be x km/hr; then

x × 1/2

48 × 3/4

∴ x =

48 × 3/4 × 2

= 72 km/hr.

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