A car travelling at a speed of 42 km/hour can complete a journey in 12 hours. How long will it take to travel the same distance at 63 km/hour?
Given
Initial speed = 42 km/h
Initial time = 12 hours
New speed = 63 km/h
Formula Used
Distance = Speed × Time
Time =
Solution
Total distance = 42 × 12 = 504 km
New time required = hours
Final Answer
So the correct answer is (b)
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