The amount of red wine in liquor is less than that in red wine. The amount of white wine and red wine is the same, both are A, the amount of small spoon is B, the amount of white wine left for the first time is a-b, the amount after red wine is a+b, the percentage of white wine is b/a+b, and the amount of white wine in red wine for the second time is B-(B * B/A+B) = A * B/A+B, A *.