Timmy's reading a book on monday evening 3 pages on that day on each day after that he read thre
e times the number of pages that he read on the previous day how many pages does he read on thursday

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.