Answered

An apartment building caretaker puts 650 ml of chlorine into the swimming pool every day. How many litres should he order to have one month's (30 days) supply on hand?

Answer :

Given:

An apartment building caretaker puts 650 ml of chlorine into the swimming pool every day.

For 30 days the supply of chlorine the caretaker needs is,

[tex]\begin{gathered} 30\times650\text{ ml} \\ =19500\text{ ml} \end{gathered}[/tex]

In litres,

[tex]\frac{19500ml}{1000}=19.5\text{ litre}[/tex]

Answer: 19.5 litres

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