Percentages

The total weight of a substance is 5 grams and is made up of the following:

61.4% – (A)
31.6% – (B)
7% – (C)

Calculate the weight (g) of each component to be added if (C) is:

(i) increased to 10%

(i) decreased to 3%

Keeping the A:B ratio the same throughout

-15-


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