Question

cat reprezinta 20% din 40%​

Answer 1

 

$\displaystyle\bf\\20\%~din~40\%=\\\\=20\%~\times~40\%=\\\\=\frac{20}{100}\times\frac{40}{100}=\\\\=\frac{20\times40}{100\times100}=\\\\=\frac{800}{10000}=\\\\=\frac{8}{100}=\boxed{\bf8\%}$