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2009-12-15T15:53:44+01:00
A)
{p=(r/2)+3
{p+r=18

{p=(r/2)+3
{r/2+3+r=18 / *2

{p=(r/2)+3
{r+6+2r=36

{p=(r/2)+3
{3r=30

{p=(r/2)+3
{r=10

{p=(10/2)+3
{r=10

p=8
r=10

b)

m=3/10n
m+n=65

m=3/10n
3/10n+n=65 /*10

m=3/10n
3n+10n=650

m=3/10n
13n=650

m=3/10n
n=50

m=(3/10)*50
n=50

m=15
n=50