Răspunsuri

2014-11-19T10:08:06+02:00
(a+b):2=16
a+b=32
20+b=32
b=32-20
b=12

deci al doilea numar este 12
2014-11-19T10:19:57+02:00
(a+b):2=16
(20+b):2=16
20+b=16×2
20+b=32
b=32-20
b=12

3 3 3