Ratio and Proportion

Number of boys 15 20 55 35

Number of girls 8 44 20 4

(2) The following table shows the eggs and flower needed

to bake a chocolate cake. Knowing that the ingredients

are in proportion, complete the table.

Number of eggs 3 9 33 39

Flower (kg) 0.5 1 2 2.5

(3) The following table shows the kilometers you ran last

months. Knowing that you always run in the same pace

(proportion), complete the table.

Kilometers 7 6 15 3

Time (minutes) 39 65 26 71.5

Answers

Number of boys 15 10 20 55 25 35 5

Number of girls 12 8 16 44 20 28 4

Number of eggs 3 9 6 33 12 39 15

Flower (kg) 0.5 1.5 1 5.5 2 6.5 2.5

Kilometers 7 6 10 15 4 3 11

Time (minutes) 45.5 39 65 97.5 26 19.5 71.5