Question

Un pahar si o sticla cantaresc cat o cana, iar sticla respectiva cantareste cat paharul si o farfurie. Stiind ca 3 cani cantaresc cat 4 farfurii, aflati cate pahare cantaresc cat o sticla.

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Answer 1

Răspuns:

Explicație pas cu pas:

1 pahar + 1 sticla = 1 cana

1 sticla = 1 pahar + 1 farfurie rezulta 1 farfurie = 1 sticla - 1 pahar

3 cani = 4 farfurii

___________

3(1 pahar + 1 sticla) = 4(1 sticla - 1 pahar)

3 pahare + 3 sticle = 4 sticle - 4 pahare

3 pahare + 4 pahare = 4 sticle - 3 sticle

7 pahare = 1 sticla