Răspuns:
a+b+c=351 tone rosii
c=a*3
b=c*3
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a=?b=?c=?
a+3a+9a=351
13a=351
a=351:13
a=27 tone de rosii in prima zi
c=a*3
c=27*3
c=81 tone de rosii a 2-a zi
b=c*3
b=81*3
b=243 tone de rosii a 3-ia zi
27+81+243=351 tone de rosii in total