Question 8
In a toy shop a four-floor black and white “brickflower” is displayed (picture 1). Each floor is made of bricks of the same colour. Picture 2 is its top view. How many white bricks were used?
Source colour note: the printed text says black and white, but the original coloured figure uses green and white; those original colours are preserved.
Source colour note: the printed text says black and white, but the original coloured figure uses green and white; those original colours are preserved.