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12 stamps increased by 125%
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5 votes
12 stamps increased by 125%

User Maziar Rumiani
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8.8k points

1 Answer

5 votes

100\%+125\%=225\%\\\\\\\begin{array}{ccc}12&-&100\%\\\\x&-&225\%\end{array}\ \ \ \ |cross\ multiply\\\\\\100x=12\cdot225\\100x=2700\ \ \ \ |divide\ both\ sides\ by\ 100\\\\\boxed{x=27}\leftarrow answer
User LTech
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