The table below gives the dimensions of a sculpture and a scale model of the sculpture.
find the scale factor of the model to the real sculpture.
write your answer as a fraction in simplest form.

scale factor in simplest form: find

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.