You have a box containing green and blue marbles. If you take out 3 green marbles, the ratio of blue to green becomes 2:1. If you take out 2 blue marbles, the ratio becomes 3:2. How many marbles are in the box?
Category: Math · Difficulty: expert
Hint: Set up a system of equations based on the ratios.
Answer
30
Explanation
Let G be green and B be blue. The two conditions can be translated into equations to solve for total marbles.
This is a expert math riddle — one of the harder riddles here. The answer is 30.
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