A man walking at 6 km/h reaches the market in 40 minutes.
If he walks at 4 km/h, how long will he take to reach the market?
Show answer & explanation
Correct answer: B
Explanation
Speed₁ = 6 km/h, Time₁ = 40 minutes, Speed₂ = 4 km/h
Time₁ = 40 minutes = 2/3 hour
Distance = 6 × (2/3) = 4 km
Time₂ = Distance / Speed₂ = 4 / 4 = 1 hour = 60 minutes