Question 1206221
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Answer: <font color=blue size=4>176</font>


Work Shown
b = number of blue buttons
b-20 = number of green buttons
84 = number of pink buttons
blue+green+pink = b+(b-20)+84 = 2b+64 = total number of buttons


3/8 of total = number of green
(3/8)*(2b+64) = b-20
3(2b+64) = 8(b-20)
6b+192 = 8b-160
192+160 = 8b-6b
352 = 2b
b = 352/2
b = <font color=blue>176</font>
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