Question
A car traveling at a speed of 60 km/h covers a certain
distance in 6 hours. If the car increases its speed by 20%, how much time will it save for the same distance?Solution
Distance = Speed × Time = 60 × 6 = 360 km New speed = 60 + 20% of 60 = 60 + 12 = 72 km/h New time = Distance / New speed = 360 / 72 = 5 hours Time saved = 6 - 5 = 1 hour
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