Question

Joao recebia 6720 de salario, passou a receber 9240. Quantos por cento aumentou seu salario?.

Answer 1

$\Large\boxed{\begin{array}{l}\sf aumento~percentual=\dfrac{sal\acute ario~novo-sal\acute ario~antigo}{sal\acute ario~antigo}\cdot100\\\\\sf aumento~percentual=\dfrac{9240-6720}{6720}\cdot100\\\\\sf aumento~percentual=\dfrac{252\backslash\!\!\!0}{672\backslash\!\!\!0}\cdot100\\\\\sf aumento~percentual=0,375\cdot100\\\sf aumento~percentual=37,5\%\end{array}}$