Răspuns :
p=padurari
c=copii
s=stejari
5p…..6c..370s
6p…2c..340s /x3
5p…6C..370s
18p…6c..1020s
13p / 650s
650:13=50 sun p
5×50=250s 5 p
370-250=120s 6 C
120:6=20s 1 c
Verificare:
(5x50)+(6×20)=
250+120=370
Raspuns:
50 stejari a plantat un pădurar,
20 stejari a plantat un copil.
c=copii
s=stejari
5p…..6c..370s
6p…2c..340s /x3
5p…6C..370s
18p…6c..1020s
13p / 650s
650:13=50 sun p
5×50=250s 5 p
370-250=120s 6 C
120:6=20s 1 c
Verificare:
(5x50)+(6×20)=
250+120=370
Raspuns:
50 stejari a plantat un pădurar,
20 stejari a plantat un copil.