Question
A man walks at 5 km/h for 2 hours and then at 4 km/h for
1.5 hours. Find the total distance covered and his average speed for the whole journey.Solution
Distance₁ = 5 × 2 = 10 km Distance₂ = 4 × 1.5 = 6 km Total distance = 10 + 6 = 16 km Total time = 2 + 1.5 = 3.5 hours Average speed = Total distance / Total time = 16 / 3.5 = 160/35 ≈ 4.57 km/h Answer: Distance = 16 km, Average speed ≈ 4.57 km/h.
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