Episode 7 of 12
Coloured squares on an 8 by 8 grid
The question
Kanya colours some squares on an 8 units by 8 units square grid, as shown.
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(a) Find the ratio of the number of coloured squares to the number of squares in the whole grid. Give the ratio in its simplest form. Kanya then colours 8 more squares.
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(b) Find the ratio of the number of coloured squares to the number of squares that are not coloured. Give the ratio in its simplest form.
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(c) Find the ratio of the number of coloured squares to the number of squares in the whole grid. Give the ratio in its simplest form.
Try it first, then show the answerHide the answer
Answer
- (a)1 : 4
- (b)3 : 5
- (c)3 : 8
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