Question

Dupa o majorare de pret de 12% urmata de reducere 10% din noul pret,un produs costa 3600 lei.
Cat a costat initial produsul?

Answer 1

Răspuns:

100/100+12/100=112/100 dupa majorare

100/100-10/100=90/100 dupa reducere

112x/100·90/100=3600

112x/100·9/10=3600

1008x/1000 =3600

1008x=3600000

x=3600000:1008

x=3571,42 pretul initial