20. (5 points) Xiyangyang, Meiyangyang, and Nuanyangyang went treasure hunting, and each of them found some gold coins. Xiyangyang's number of gold coins is 41 of the total number of gold coins the other two have, Meiyangyang's number of gold coins is 31 of the total number of gold coins the other two have, and Nuanyangyang has 176 gold coins. Therefore, the total number of gold coins they found is .
A number or a short expression. Fractions can be typed as 3/2, and spacing doesn't matter.
Official solution
320
Source: NuminaMath-1.5,
licensed Apache-2.0.
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