A bag contains yellow, green, blue, and white marbles. The ratio of yellow, green, blue, and white marbles is 1:2:3:4. If the bag contains 180 marbles, then how many blue marbles are there?
+274 Hello! The answer is 54 and here is my solution:
Since the ratio of yellow, green, blue, and white marbles is 1:2:3:4 –
yellow = x
green = 2x
blue = 3x
white = 4x
So x + 2x + 3x + 4x = 180 marbles. Then we simplfy to 10x = 180, therfore x = 18. So there are 18 yellow marbles, now we have to find how many blue marbles there are which is 3*18 = 54.
