Question

6 becuri mici si 6 becuri Mari consuma intro zi 60 de kilowatt in Alta zoo becuri mici si 12 becuri Mari consuma 96 kilowatt.Citi kilowatt consuma intro zi in Mac Mic si citi in bec mare

Answer 1

6*m+6*M=60 =>m+M=10 =>m=10-M
2*m+12*M=96
2*(10-M) + 12*M=96
20-2*M+12*M=96
20+10*M=96
10*M=76
M=7,6
m=10-7,6
m=2,4
zoo becuri?