Răspuns :
x=numarul
1/4*x+1/8*x+16/100*x=17,5 Amplificam si obtinem:
20+12,5+16/100*x=17,5
48,5/100*x=17,5
=>x=36,08
1/4*x+1/8*x+16/100*x=17,5 Amplificam si obtinem:
20+12,5+16/100*x=17,5
48,5/100*x=17,5
=>x=36,08
x/4+x/8+x/16=17,5
4*(x/4)+2*(x/8)+x/16=17.5
4x/16+2x/16+x/16=17.5
7x/16=17.5
7x=17.5*16
7x=280
x=40
4*(x/4)+2*(x/8)+x/16=17.5
4x/16+2x/16+x/16=17.5
7x/16=17.5
7x=17.5*16
7x=280
x=40