Question

La o croitorie s au folosit 3 baloti de panza.primii 2 baloti aveau 67 m ultimii 2 61 m iar 1 și 3,aveau 80 m. Cati m avea fiecare balot.

Answer 1

b=balot
a= primul balot
b=al doilea balot
c=al treilea balot
a+b=67m
b+c=61 m
a+c=80m
a+b+b+c+a+c=67+61+80
2a+2b+2c=128+80
2a+2b+2c=208
2×(a+b+c)=208
a+b+c=208÷2
a+b+c=104
c=104-67
c=37
b+37=61=> b=61-37 =24
a+24=67=> a=67-24=43
Verificare:43+24+37=104