Răspuns :
not.
f=unif. fete
b=unif. baieti
12f+20b=84 m (1)
6f=4b⇒12f=8b
f=2/3b (2)
inlocium in relatia (1)
8b+20b=84⇒b=84/28=3 m
20b=20*3=60 m
inlocuim in relatia (2):
f=6/3=2 m⇒12f=12*2=24m
f=unif. fete
b=unif. baieti
12f+20b=84 m (1)
6f=4b⇒12f=8b
f=2/3b (2)
inlocium in relatia (1)
8b+20b=84⇒b=84/28=3 m
20b=20*3=60 m
inlocuim in relatia (2):
f=6/3=2 m⇒12f=12*2=24m
f-uniforme fete
b-uniforme baieti
12f+20b=84 /:4
6f=4b /:2
3f=2b
3f+5b=21
2b+5b=21
7b=21 => b=3
3*2=3f
6=3f => f=2
b-uniforme baieti
12f+20b=84 /:4
6f=4b /:2
3f=2b
3f+5b=21
2b+5b=21
7b=21 => b=3
3*2=3f
6=3f => f=2