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11. Salt costs 40 cents for every 100 grams. How many grams of salt can be bought with $2?
12. Purple paint is made by mixing 3 parts red paint with 2 parts of blue. How much blue paint is needed when you have 600ml of red?
13. To make 8 pancakes, you need 160 grams of flour. How many grams of flour are needed to make 12 pancakes?
14. In a class there are 5 boys for every 3 girls. There are 15 girls. How many boys are there?
15. Sally and her sister take a walk in the park. For every 5 strides Sally makes, her sister makes 4. When Sally has made 50 strides, how many strides has her sister made?
16. Dave picked some mangoes. He gave his friend 3 for every 5 he kept for himself. If he kept 70 mangoes, how many did he give to his friend?
17. Dana and her sister were on the beach collecting shells. For every 8 shells collected, her sister collected 5. If her sister collected 65, how many did Dana collect?
18. In a factory, for every 12 shirts made. 8 trousers are made. If 200 trousers were made today, how many shirts were made?
19. A music shop advertised for a sale on CD’s. Sam bought 20 CD’s.
a) How many CD’s did he get altogether?
b) If Sam paid $100, what was the cost of 1 CD?
c) Sam’s friend spent $95. How many CD’s did he get in all?