Question

am si eu o problema de clasa a 4-a care suna cam asa:
intr-o zi 15 fete si 10 baieti planteaza 420 de panselute iar in a 2-a zi 12 fete si 10 baieti au plantat 360 de panselute. cate panselute a plantat un baiat si cate o fata pe zi?
Multumesc anticipat !

Answer 1

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Answer 2

15 fete..........10 baieti...........420 panselute
12 fete..........10 baieti...........360 panselute

15-12=3 fete
420-360=60 panselute

60:3=20 panselute (o fata)

12x20=240 panselute 12 fete
360-240=120 panselute 10 baieti

120:10=12 panselute (un baiat)