Artut had some marbles. 1/4 of the marbles were blue, 3/12 of the marbles were red, and the rest were yellow. There were 14 more red marbles than yellow marbles. How many marbles did Ann have altogether?
+1694 Let's fix up this question first.
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Arturo had some marbles. 1/4 of the marbles were blue, 3/12 of the marbles were red, and the rest were yellow. There were 14 more yellow marbles than red marbles. How many marbles did Arturo have altogether?
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Now we can solve this problem.
1 : 1 : 2
1/4 blue 3/12 red yellow
x + x = x + 14
x = 14
Arturo had 56 marbles. 
