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Maria,Andrei si Ciprian au adunat impreuna 91 de castane.Andrei a adunat cat jumate din nr castanelor adunate de maria,iar ciprian cat jumate din nr castanelor aduncate de andrei
Cate castane a adunat fiecare copil?

HELP REPDE CA ACUMA O INCEP


Răspuns :

maria are 4 segmente
andrei are 2 segmente
ciprian are 1 segment si se rezolva asa
 91:7=13
13x2=26
26x2=52
a+b+c=91
|________|_______|_______|________|Maria
|________|_______|Andrei
|________|Ciprian
x=caxtanele adunate de Ciprian
x+2x+4x=91
7x=91
x=13 castane a adunat Ciprian
13x2=26 castane a adunat Andrei
26x2=52 castane a adunat Maria