Question

Doua kilograme si un sfert cantaresc , la un loc, cinci bibani si o batca, iar zece bibani si o batca, patru kilograme si un sfert.Aflati cat cantaresc doua batce si doi bibani la un loc.

Answer 1

 5 bibani............1 batca ..................................2,25 kg
10 bibani............1 batca ..................................4,25 kg
10-5=5 bibani.....1-1=0 batca........................4,25-2,25=2 kg
1 biban...........................................................2:5=0,4 kg
                            1 batca..............................2,25-2=0,25 kg
2 bibani..............2 batce...........................(0,4+0,25)×2=0,65×2=1,30 kg

Answer 2

notam cu b bibanul
si a batca