A car travelling with $$\frac{5}{7}$$ of its actual speed covers 42 km in 1 hour

Question

A car travelling with $$\frac{5}{7}$$ of its actual speed covers 42 km in 1 hour 40 minute 48 second. Find the actual speed of the car.

Options:

A . $$17\frac{6}{7}\,$$ km/hr

B . 25 km/hr

C . 30 km/hr

D . 35 km/hr

Answer: Option D

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