Răspunsuri

2014-02-11T23:06:03+02:00
898=248+r+150+r+248 cred si afli r care va reprezenta cate timbre are ACUM ramona. Cred.
de fapt nu asa
sa ma ganesc
gandesc*
c+r=898 r=150+c, r=248+r1, r1 fiind nr de timbre initial.
2014-02-12T00:57:14+02:00
Clara =a
ramona =b

a+b=898 => b = 898-a
a-248 + b+248 =898
(a-248) + 150 = b+248
a-248= b+98
a -248 = 898 -a + 98 (separam termenii)
2*a=898 +98 +248 => 2a=1244 => a=622 (timbre clara initial)
b=898 -622 = 276 (timbre ramona initial)

testam (622 -248)+150 =276+248 =>524=524( se verifica )
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