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Ruxi200777
a fost răspuns

la o cantina 128 kg prune au fost folosite astfel :2/4 din cantitatea pt dulceata ,5/8 din rest pt compot iar noul rest a fost repartizat in mod egal pt a fi consumate in stare proaspata in 4 zile .Ce cantitate de prune proaspete s-a repartizat pt din cele 4 zile ???CU METODA GRAFICA!!!

Răspuns :

Andreea2008M

128kg prune

2/4 x128=1/2x128=128/2=64 kg s-au folosit pt dulceata

au ramas 128-64=64kg

5/8 din 64kg compot

5x64 / 8 = 5x8=40kg s-au folosit pt compot

au ramas 64-40=24kg prune

24kg prune s-au consumat in 4 zile. Cate s-au consumat zilnic?

24:4=6kg/zi prune

Raspuns: 6kg prune s-au consumat in fiecare din cele 4 zile


/---/---/---/---/---/---/---/---/---/---/---/---/---/---/---/---/    128:16parti

/---/---/---/---/---/---/---/---/                                          2/4x16/16=8/16 dulceata

                                      /---/---/---/---/---/                  5/8x2/4=10/32=5/16, compot

                                                             /---/---/---/    3/16 din 128 raman pt 4zile

3/16 x 128= 3x128 /16=384:16=24

24:4zile=6 kg pe zi






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