Răspuns :
a+b+c=448
a+n=54
b+n=136
c+n=285
a=54-n
b=136-n
c=285-n
54-n+136-n+285-n=448
475-448=3n
27=3n
n=9
a=54-9=45
b=136-9=127
c=285-9=276
a+n=54
b+n=136
c+n=285
a=54-n
b=136-n
c=285-n
54-n+136-n+285-n=448
475-448=3n
27=3n
n=9
a=54-9=45
b=136-9=127
c=285-9=276