Given that the formula ratio of the equal ratio sequence ABCD is 2, then 2A + B / 2C + D is?

Given that the formula ratio of the equal ratio sequence ABCD is 2, then 2A + B / 2C + D is?

2a+b=2b
2c+d=2d
So: 2A + B / 2C + D = B / D = 1 / 4
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