Question

Aflati un numar , stiind ca adunand o cincime din el cu 3/8 din el , obtinem 115. (Ecuatie)

Answer 1

$\frac{1}{5}$ x+ [tex] \frac{3}{8} x =115 \frac{8}{40} x+ \frac{15}{40} x= 115 \frac{23}{40} x=115 x= \frac{115}{1} * \frac{40}{23} x=200 [/tex]