A boy covers a distance of 20 km in 2.5 hours, partly on food at the rate of 5 kilometre per hour and partly on bicycle at the rate of 10 km per hour. find the distance covered on foot.
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when you because Distance: Velocity x Time 20-2.5=5
turn the 2.5 to 25 then subbract 20 = 5 and boom
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