Question

ionel si-a propus sa resolve 10 problem in 3 zile . in prima zi a rezolvat 4 probleme ,iar in a doua zi a rezolvat de doua ori mai putine . cate probleme a rezolvat in a treia zi

Answer 1

I zi =4 probleme
II zi: 4:2=2 pr.
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total:4+2=6 pr , in 2 zile
a treia zi ?
10-6=4 pr

Answer 2

in a doua zi a rezolvat 4:2=2 probleme iar in a treia zi a lucrat 4 probleme si facem 2+4=6 si 10-6=4