Răspuns :
x-pretul initial
x+10/100*x=x+ x/10 =10x+x/10=11x/10-prima scumpire
11x/10+20/100*11x/10= 11x/10 +11x/50 =55x+11x/50=66x/50
66x/50=264
x=50*264/66=4*50=200
x+10/100*x=x+ x/10 =10x+x/10=11x/10-prima scumpire
11x/10+20/100*11x/10= 11x/10 +11x/50 =55x+11x/50=66x/50
66x/50=264
x=50*264/66=4*50=200
x- pret initial
1 scumpire:
x+10x/100= A - noul Pret
2 scumpire:
A+20A/100=264
A+A/5=264 Amplificam cu 5
5A+A=1320
6A=1320
A=220
x+10x/100= 220
x+x/10=220 AMplificam cu 10
10x+x=2200
11x=2200
x=200
1 scumpire:
x+10x/100= A - noul Pret
2 scumpire:
A+20A/100=264
A+A/5=264 Amplificam cu 5
5A+A=1320
6A=1320
A=220
x+10x/100= 220
x+x/10=220 AMplificam cu 10
10x+x=2200
11x=2200
x=200