Question 34
To cover a distance of 81 km in 1.5 hours what should be the average speed of the car in meters/second?
Solution
$$speed=\frac{distance}{time}$$ = $$\frac{81}{1.5}kmph$$ = $$\frac{81}{1.5}*\frac{5}{18}=15m/s$$
So the answer is option B.
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