Question

2.a)Aflati 35% din numarul 180. b)Aflati un numar,stiind ca 17% din el reprezinta 102.

Answer 1

$\displaystyle 35\% \ din \ 180 \\ \\ \frac{35}{100} \cdot180= \frac{35}{10}\cdot18= \frac{630}{10}=\boxed{63 } \\ \\ ----------------\\ x=? \\ 17\% \cdot x=102 \\ \\ \frac{17}{100} \cdot x =102 \\ \\ \frac{17x}{100}=102 \\ \\ 17x= 10200 \\ \\ \boxed{x=600}$

Answer 2

180 *35 /100 =6300/100 =63
100 *102 /17 =10200/17 =600