Question 40

The speed of car B is half the speed of car A. If car A covers a distance of 120 km in 1 1/2 hours, what is the speed of car B?

Solution

If car A covers a distance of 120 km in 1 1/2 hours. Then speed = $$\frac{distance}{time}$$

= $$\frac{120}{1.5} = \frac{120\times2}{3} = 80$$

Hence speed of car A = 80 kmph

Now speed of car B = 80 $$\div 2$$ = 40 kmph

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