Question

14 prune valoreaza cat 2 caise si o para iar 2 prune si 4 caise cat o para.Cate prune valoreaza cat o para?

Answer 1

notam x-prune, y-caise, z-para
14x=2y+1z
2x+4y=1z
?x=?z

14x=2y+2x+4y
14x-2y-2x-4y=0
12x-6y=0
12x=6y
y=12x/6
y=2x

2x+4y=z
2x+4*(2x)=z
2x+8x=z
10x=z

deci 10 prune valoreaza cit o para!

Answer 2

prunele=p
caisele=c
para=x
14p=2c+1x
2p+4c=1x
14p=2c+2p++4c
14p=6c+2p
6c=14-2
6c=12
1 caisa=2 prune
2p+2px4=1x
10prune=1 para