What we want is for 4

*b*to be equal to 100. That way, it's easy for us to figure out what 125% of 4

*b*is. So let's say

*b*= 25, which makes 4

*b*= 100.

125% of 100 is 125, so we need to solve:

*a*+2

*b*= 125

*b*= 25:

*a*+ 2(25) = 125

*a*+ 50 = 125

*a*= 75

Then just keep on plugging in:

*a*/

*b*= 75/25

*a*/

*b*= 3

Our answer is 3.

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