Solve proportions

1. 1.
   5 cakes need 10 eggs. How many eggs for 15 cakes?
2. 2.
   6 pencils cost $48. How much do 18 pencils cost, in dollars?
3. 3.
   5 pencils cost $30. How much do 20 pencils cost, in dollars?
4. 4.
   5 pencils cost $25. How much do 15 pencils cost, in dollars?
5. 5.
   Solve for x: 67 = x/14
6. 6.
   2 litres of paint cover 14 m². How many m² will 6 litres cover?
7. 7.
   2 litres of paint cover 16 m². How many m² will 4 litres cover?
8. 8.
   Solve for x: 24 = x/24
9. 9.
   Solve for x: 95 = x/25
10. 10.
    Solve for x: 94 = x/12
11. 11.
    6 pencils cost $30. How much do 24 pencils cost, in dollars?
12. 12.
    Solve for x: 16 = x/24
13. 13.
    Solve for x: 35 = x/20
14. 14.
    Solve for x: 85 = x/30
15. 15.
    Solve for x: 42 = x/10
16. 16.
    3 cakes need 21 eggs. How many eggs for 9 cakes?
17. 17.
    Solve for x: 86 = x/18
18. 18.
    Solve for x: 46 = x/30
19. 19.
    2 litres of paint cover 8 m². How many m² will 4 litres cover?
20. 20.
    A cyclist rides 3 km in 12 minutes. At the same speed, how many minutes for 12 km?

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