Mr. Lim has a bag with some marbles colored red, yellow, green, blue, and white. The marbles are identical in number. If there are 40 marbles in the bag, how many marbles of each color are in the bag?

Since the marbles are all identical in number and there are 40 marbles in total, the number of marbles of each color would be the total number of marbles divided by the number of colors.

40 marbles / 5 colors = 8 marbles of each color

Therefore, there are 8 red marbles, 8 yellow marbles, 8 green marbles, 8 blue marbles, and 8 white marbles in the bag.