Question
A car covered a journey in 10 hours with an average speed of 80km/hr. If it covers initial 30% of distance in 6 hours. Find the speed of car while covering remaining distance.
Solution
Total distance covered by car = 10×80 = 800 km. Initial 30% distance covered in 6 hours. So, the remaining distance covered in 4hrs. Let speed while covering remaining distance be v; v × 4 = 70% of 800 => v = 140 km/hr
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