Question

O persoana are o suma de bani.in prima zi chieltuie 30% din S,a doua zi chieltuie 41% din S, iar a treia zi 1/4 din S. Stiind ca persoanei ii raman 600 lei, aflatiS

Answer 1

30%+41%+25%=96%--------------- 100-96=4% ----------------- 4%=600 lei. ------------------ 1%=600/4 ----------------- 1%=150 lei. ----------------- 30 x 150=4500 lei. ---------------- 41 x 150=6150 lei. ------------------ 25 x 150=3750 lei ------------------- S =4500+6150+3750+600. -------------- S=15000 lei.. ------------------ Sau... 1%=150 ------------------ 100%=150x 100=15000 lei ---