42)a+b+c=72454
a |.....|.....|.....|.....|
b |...|...|...|...|...|..|...|..|..|..|..|..|
c |...|
c=72454:17=4262
a=4262×4=17048
b=4262×12=51145
43)
5 muncitori.......10 zile
10 muncitori........?zile
muncitorii sunt dublul lui 5 de unde rezulta ca numarul de zile va fi jumatate
afica 5 zile
46)rosii+albe=1000
rosii |......|......|.......|
albe |......|
garoafe albe=1000:4=250
garoafe rosii=250×3=750
47)tatal |.....|....|....|....|....|....|
fiul |......|
fiul=25:5=5ani
tatal=5×6=30ani
