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Primul exercitiu va rogAm pus 23 de puncte!!!!!!!VA ROG♡♡♡♡

Primul Exercitiu Va RogAm Pus 23 De PuncteVA ROG class=

Răspuns :

4becuri ......3h.......3KW
4becuri........20h.........x KW
x=20·3/3=20KW

4becuri........20h.........20 KW
6becuri.........20h....... y KW

y=6·20KW/4=6·5KW=30 KW