Test 2. Direct proportion

 1. Magazines cost £21 for 7. Find the cost of 3 magazines.

 а)   £11;        b)   £7;      

 c)  £9;           d)   £10.

 2. 9 pizzas cost £45. How much will 7 pizzas cost? 

 а)  £35;      b)  £39;     

 c)  £31;      d)  £30.

 3. 8 rubbers cost 88p. How much will 5 rubbers cost?

 а)  57р;      b)  49 р;     

 c)  55р;      d)  52 р.

 4. 7 shirts cost £84. Find the cost of 4 shirts.

 а)  £52;      b)  £48;     

 c)  £46;      d)  £50.

 5. The total weight of 6 CDs is 72 grams. How much do 9 CDs weigh?

 а)  96 g;        b)  102 g;     

 c)  113 g;      d)  108 g.

 6. 2 television cost £900. How much will 3 television cost?    

 а)  £1350;      b)  £1375;     

 c)  £1315;      d)  £1330.

 7. A car takes 20 minutes to travel 32 km. How far will the car travel in 40 minutes?

 а)  68 km;      b)  64 km;     

 c)  57 km;      d)  62 km.

 8. 4 cups cost 2.80. How much will 5 cups cost?

 а)  £4.50;      b)  £3.25;     

 c)  £3.50;      d)  £3.75.

 9. Toni used 450 g of mince to make chilli con carne for 4 people. How much mince would have to be used to make chilli con carne for 10 people?

 а)  1075 g;      b)  1125 g;     

 c)  1315 g;      d)  1140 g.

10. 5 bottles of beer cost £13.30. Find the cost of 7 bottles of beer.

 а)  £19.05;       b)  £18.34;     

 c)  £18.42;       d)  £18.62.

11. 17 adults can go to the cinema for £116.45. How much would 12 adults pay?

 а)  £82.20;      b)  £83.40;     

 c)  £81.80;      d)  £83.10.

12. Kelly bought 4 identical computer disks for £3.60. Work out the cost of 9 of these computer disks.

 а)  £8.10;      b)  £9.65;     

 c)  £7.90;      d)  £8.25.