Ratio Problems - tandrageemaths



Ratio Problems.

1. Potting compost is made from loam, peat and sand in the ratio of

7: 3: 2. A gardener used 1.5 litres of peat to make compost.

i) How much loam did she use ?

ii) How much sand did she use?

2. To make 10 buns we need 120g of flour. How much flour do we need for (i) 15 buns

(ii) 45 buns

(iii) 50 buns?

3. To make 5 cakes we need 24g of butter. With 36g of butter how many cakes can we make?

4. Shortcut pastry is made using flour and fat in the ratio of 2: 1. How much flour will be needed if we use 450g of flour?

5. In a metal compound, there are the elements of iron, copper, nickel and alum in the ratio of 5: 4: 4: 1. How much copper is needed to mix with 85g of iron?

6. 2 parts of blue paint mixed with 3 parts of yellow paint makes green paint. If we have 50 ml of blue paint and 100ml of yellow paint, what is the maximum amount of green paint we can make?

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