What should be the average speed of a car to cover a distance of 189 km in 3.5 hours?
The car covers 189 km in 3.5 hours
Speed of car (in km/h) = $$\frac{189}{3.5} = 54$$ km/hr
=> Speed of car (in m/s) = $$54 \times \frac{5}{18}$$
= $$3 \times 5 = 15$$ m/s
=> Ans - (A)
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