Question
A man travels a distance of 75 km
in 11 hours such that he traveled partly on foot at a speed of 5 km/hr and the rest by car at a speed of 15 km/hr. Find the distance covered by the man on foot.Solution
Let the distance traveled by foot be x km. So, the distance traveled by car = 75 − x km. ATQ, 
On Solving: - 
So, the distance traveled on foot = 45 km.
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