Question

dau coroana cine raspunde repede și corect ​

Answer 1

◘ Cati elevi au luat FB ?

$\frac{25}{100}* 180 = 45 \ elevi$

◘ Cati elevi au luat premii ?

$\frac{1}{5} * 45 = 9\ elevi$

Raspuns corect : 9 elevi au luat premii

Answer 2

$\it \ 25\%=\dfrac{\ 25^{(25}}{100}=\dfrac{1}{4}\\ \\ 180\cdot\dfrac{1}{4}\cdot\dfrac{1}{5}=\dfrac{180}{20}=9\ elevi\ au\ luat\ premii.$