Răspunsuri

  • Utilizator Brainly
2014-09-18T13:25:32+03:00
A.I_____I
b.I_____I+15
c.I_____I+15+15
d.I_____I+15+15+15

Suma este 490 . Aflam suma partilor egale eliminand 15x6=90 .
490-90=400 ( suma partilor egale )
400:4=100 ( numarul a )
100+15=115 ( numarul b )
100+30=130 ( numarul c )
100+45=145 ( numarul d )

Verificare : 100+115+130+145=490
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