1) Simplify fully the ratio 20:30 a) 4:6 b) 200:300 c) 10:15 d) 2:3 e) 6:4 f) 20:30 2) There are 30 pupils in a class. The number of boys to girls is in the ratio 3:7. How many boys are there? a) 8 b) 9 c) 10 d) 11 e) 12 f) 12 3) It costs £1.20 for 3 pens. How much do 7 pens cost? a) £2.30 b) £2.40 c) £2.80 d) £3.10 e) £12.00 4) The ratio of cordial to water to make a particular juice is 2:7. If I use 8 litres of cordial, how much water do I need? a) 16 litres b) 28 litres c) 18 litres d) 13 litres e) 15 litres 5) Paul is 12 years old. His mum is 28 years older. Write their age to age ratio in its simplest form. a) 3:10 b) 12:28 c) 6:14 d) 3:7 e) 6:20 6) 100g of sweets cost 72p. How much for 500g? a) £7.20 b) £3.50 c) £1.44 d) £3.60 e) £2.88 7) Simplify fully the ratio 2m:80cm. a) 5:2 b) 1:40 c) 40:1 d) 2:5 e) 1:4 8) Cancel down the ratio 4:18 into the ratio 1:n a) 1 : 4 b) 1 : 4.5 c) 4 : 1 d) 4 : 1.5 e) 1 : 18 f) 1 : 418 9) The ratio of ducks to fish is in the ratio 3:5. There are 25 fish. How many ducks are there? a) 15 b) 25 c) 30 d) 5 e) 10 f) 20 10) Simplify the ratio 200g : 1kg a) 2 : 1 b) 1 : 2 c) 1 : 5 d) 5 : 1 e) 1 : 4 f) 4 : 1

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