Direct Proportion

Question 1

3 lemons cost 45p. Workout the cost of 5 lemons.

Answer 1

45 divided by 3= 15p
15p x 5= 75p

Question 2

4 Tins of beans and 3 tins of soup cost £3.68.
5 tins of beans cost £1.60.
Workout how much one tin costs of soup.

Answer 2

1.60 divided by 5= 32p
32p X 4= £1.28
3.68 - 1.28= £2.40
2.40 divided by 3= 0.80p

Question 3

It costs £1.71 to buy 5 apples and 3 pears.
It costs £1.08 to buy 4 pears.
Workout how much it would cost to buy 4 apples.

Answer 3

£1.08 divided by 4= 0.27p
0.27 X 3= 0.81
1.71 - 0.81= 0.90
0.90 divided by 5= 0.18
0.18 X 4= 0.72p