x= numarul de elevi din acea scoala Elevi in clasa 1: 1/4×x =>x-x×1/4=3/4×x (elevi care nh sunt in clasa 1) Elevi in clasa 2 : 1/3×x + 10 =>(3/4×x)-(1/3×x+10) =>9/12×x - 4/12×x - 10 =>5/12x-10 (elevi in clasele 3 si 4) Elevi in clasa 3: 3/5 => (5/12×x-10)-(3/5×5/12×x-10)=56 5/12x-10-3/5x×5/12x+10=56 5/12x-3/12x=56 2/12x=56 x=56/1:2/12 x=56/1×12/2 x=28×12 x=336
Raspuns: Sunt in total 336 de elevi (atat se cere) Sper ca ai inteles.. daca iti place poti sa imi dai coronita
