Question

La o librarie sau adus 435 cutii cu 5 pixuri se vand 147 de cutii cate pixuri au ramas nevadute? (Rezolva in doua moduri)

Answer 1

mod I
435-147=288 cutii vandute
288*5=1440 pixuri vandute

mod II
(435-147)*5=288*5=1440 pixuri vandute

Answer 2

$MOD ~I$
$435-147=288~ cutii$
$288*5=1440~ pixuri$

$MOD~ II$
$(435-147)*5=288*5=1440~ pixuri$