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Adam walks \( 1,25 \mathrm{~km} \) in 25 minutes and Sean 1,44 km in 30 minutes. Who walks faster? A bus departs from Bloemfontein to Durban and travels at an average speed of \( 94 \mathrm{~km} / \mathrm{h} \). The distance between the 2 cities is 116 km . How long will the trip take? A car departs at \( 07: 00 \) and travels at an average speed of \( 115 \mathrm{~km} / \mathrm{h} \). What time will it arrive at its destination which is \( 632,5 \mathrm{~km} \) away?

Ask by Kelly Floyd. in South Africa
Mar 11,2025

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Answer

Adam walks faster at 3 km/h. The bus trip takes about 1 hour and 14 minutes. The car will arrive at 12:30.

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Bonus Knowledge

First, let's determine who walks faster. Adam covers \(1.25\) km in \(25\) minutes, which is equivalent to \(0.05\) km/min, or \(3\) km/h. Sean, on the other hand, walks \(1.44\) km in \(30\) minutes, translating to \(0.048\) km/min, or \(2.88\) km/h. Therefore, Adam is the faster walker, clocking in at \(3\) km/h! Now, onto the bus trip! To find out how long it will take for the bus traveling at \(94\) km/h to cover \(116\) km, we use the formula: time = distance ÷ speed. Plugging in the numbers gives us \(116 \text{ km} ÷ 94 \text{ km/h} = 1.23\) hours, or about \(1\) hour and \(14\) minutes. Thus, the bus will reach Durban in just a little over an hour! For the car's journey, if it departs at \(07:00\) and is traveling \(632.5\) km at \(115\) km/h, we can find the travel time using the same formula. \(632.5 \text{ km} ÷ 115 \text{ km/h} = 5.5\) hours. Adding \(5\) hours and \(30\) minutes to \(07:00\) brings us to \(12:30\). The car will arrive at its destination at exactly \(12:30\)!

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