3 years ago

125% of e is 30. What is e ?

1 answer:

6 0

well, "e" will be the 100%, and we know that 125% of "e" is 30, so then

$\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} e&100\\ 30&125 \end{array}\implies \cfrac{e}{30}=\cfrac{100}{125}\implies \cfrac{e}{30}=\cfrac{4}{5}\implies 5e=120 \\\\\\ e=\cfrac{120}{5}\implies e = 24$

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