Atrain leaves miami at 5pm. a second train leaves the same city in the same direction at 8: 00pm. the second train travels 90 mph faster than the first train. if the second train overtakes the first at 10: 00pm, what is the speed of each of the two trains?

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.