Odpowiedzi

2009-11-24T19:09:40+01:00
630 - 100% x - 33 1/3%

630/x = 100% /33 1/3%
630*33 1/3% = x*100%
x=210


x-9=201
201 - 16%
x - 100%

201/x=16%/100%
201*100%=x*16%
x = 20100%/16%
x = 1256,25%