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Ratio Homework Question.

to make tasty orange cordial you need 35ml of cordial and 165ml of water. Write down the ratio of cordial to water in its simplest form. Calculate the volumes of each needed to make 1 litre of juice.

Cordial to water, 35 : 165. We could divide both numbers by 5 to get 7 : 33. This won't simplify any further. 7+33 = 40, so you can imagine 40 ml of drink, 7 ml of which is concentated cordial. If you could work out how many units of 40ml in 1 litre, you'd know how many units of 7 ml you'd need.
18 January 2012
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