What percent of the grid is coloured?
Provide the question image We can see that 50 out 100 squares are shaded = 50/100 = 50 %
What percent of the grid is not coloured?
A figure, on a grid paper of grids 1 sq mm each, occupies 60 complete grids, 20 exactly half grids and 60 more than half grids. What is the total space occupied by the figure?