Question

60 is 25% of what number?

Answer 1

$1\% =\frac{1}{100}\\ \\25 \ \% * x =60\\ \\ \not25^1*\frac{1}{\not100^4}x = 60 \\ \\\frac{1}{4}x =60 \ \ /*4\\ \\x=60*4\\ \\ x=240$

Answer 2

$\begin{array}{ccc}25\%&-&60\\\\100\%&-&x\end{array}\\\\multiply\ cross\\\\25x=60\cdot100\ \ \ /:25\\\\x=\frac{6000}{25}\\\\x=240$