Răspuns :
I=Ioan
S=Sina
M=Matei
M=5
I=3·M⇒I=3·5⇒I=15
S=2·I⇒S=2·15⇒S=30
M+S+I=5+15+30= 50
S=Sina
M=Matei
M=5
I=3·M⇒I=3·5⇒I=15
S=2·I⇒S=2·15⇒S=30
M+S+I=5+15+30= 50
Ioan:5×3=15 bile albastre............................................
Sina:15×2=30 bile albastre..........................................
total bile albastre:5+15+30=50 bile albastre..............
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