6 becuri mici+12 becuri mari=96 kw
6 becuri mici +6 becuri mari=60 kw
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6 bec mari =36 chilovati
1)cati chilovati consuma un bec mare intr o zi?
Un bec mare =36:6=6 chilovati
2)cati chilovati consuma 6 becuri mici?
60-36=24 chilovati
3)cati chilovati consuma un bec mic?
24:6=4 chilovati