An Olympic sized swimming pool when full contains 2,500,000 litres of water. To keep the swimming pool disinfected, the pool needs to maintain a chlorine concentration of 0.5ml of chlorine per litre of water.Assuming the swimming pool is emptied and re-chlorinated every day, how much chlorine is needed to disinfect an Olympic sized swimming pool for 5 days? (1 litre = 1000ml)5,750 litres6,000 litres6,250 litres6,500 litres6,750 litres
Question
An Olympic sized swimming pool when full contains 2,500,000 litres of water. To keep the swimming pool disinfected, the pool needs to maintain a chlorine concentration of 0.5ml of chlorine per litre of water.Assuming the swimming pool is emptied and re-chlorinated every day, how much chlorine is needed to disinfect an Olympic sized swimming pool for 5 days? (1 litre = 1000ml)5,750 litres6,000 litres6,250 litres6,500 litres6,750 litres
Solution
To solve this problem, we need to follow these steps:
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First, we need to calculate the amount of chlorine needed for one day. We know that the pool needs 0.5ml of chlorine per litre of water, and the pool contains 2,500,000 litres of water. So, we multiply 0.5ml by 2,500,000 litres to get the amount of chlorine needed for one day:
0.5ml/litre * 2,500,000 litres = 1,250,000ml
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Since 1 litre = 1000ml, we need to convert the amount of chlorine from ml to litres:
1,250,000ml ÷ 1000 = 1250 litres
So, 1250 litres of chlorine are needed to disinfect the pool for one day.
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Finally, to find out how much chlorine is needed for 5 days, we multiply the amount of chlorine needed for one day by 5:
1250 litres/day * 5 days = 6250 litres
So, 6250 litres of chlorine are needed to disinfect an Olympic sized swimming pool for 5 days. Therefore, the correct answer is 6,250 litres.
Similar Questions
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