Question

Doua numere au suma 157 . Daca le împartim obtinem catul 5 si restul 13 . Care sunt cele doua numere ?

Answer 1

a+b=157
a:b=5 rest 13 => a=5b+13
5b+13+b=157
6b=157-13
6b=144
b=144:6
b=24
a=5x24+13
a=120+13
a=133
133+24=157

Answer 2

a+b=157
a:b=5 rest 13
a=5×b+13
a -------- ------- ------- ------- ------+13
b --------
sunt 6 segmente egale +13
157-13=144
144:6=24(un segment)
b =24
a=24×5+13=120+13=133
a=133