Any help for the below problem will be much appreciated.
Container A contains 250 red marbles and 200 blue marbles.
Container B contains 600 red marbles and 150 blue marbles.
How many red and blue marbles must be moved from Container A to Container such that 25% of the marbles in Container A are red and 75% of the marbles in Container B are red?
Note: A geometrical approach is recommended.