Arecipe requires 1/3 cup of milk for each 1/4 cup of water. how many cups of water are needed for each cup of milk?

a. 1/12
b. 3/4
c. 11/12
d. 1 1/3

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.