Question

Ajutati-ma click pe poza va rog

Answer 1

Prob 32 suma pe care o are x
prima zi cheltuieste x/3+15
A doaua zi 40/100X(x-x/3-15)
a treia zi diferenta 100%-40%=60%
60/100(x-x/3-15)=27
3/5(x-x/3-15)=27
3(3x-x-45)/3=135
2x-45=135
2x=135+45
2x=180
x=180/2
x=90 lei
A doua zi a chelt 40/100(90-90/3-15)=2/5(90-30-15)=2/5x45=2x9=18 lei