Question

A student had $80 but spent $20. What percentage of his money has he spent?

Answer 1

According to question:-

X% of 80=20

$\large{\huge{\underline \mathbb{ \overline { \mid{ \blue{Answer} \mid}}}} } \\ \\ \frac{x}{10 0} \times 8 0 = 20 \\ \\ x = \frac{100 \times 20}{80} \\ \\ x = \frac{2000}{80} \\ \\ x= 20 \\ \\ so \: he \: has \: spent \: 20\%$

Answer 2

Answer:

According to question:-

X% of 80=20

$\begin{gathered} \large{\huge{\underline \mathbb{ \overline { \mid{ \blue{Answer} \mid}}}} } \\ \\ \frac{x}{10 0} \times 8 0 = 20 \\ \\ x = \frac{100 \times 20}{80} \\ \\ x = \frac{2000}{80} \\ \\ x= 20 \\ \\ so \: he \: has \: spent \: 20\%\end{gathered}$