Răspuns :
a.I____I
b.I____I+2
c.I____I+2+2
Suma este 126 .
126-6=120
120:3=40 ( a )
40+2=42 ( b )
40+4=44 ( c )
Verificare : 40+42+44=126
b.I____I+2
c.I____I+2+2
Suma este 126 .
126-6=120
120:3=40 ( a )
40+2=42 ( b )
40+4=44 ( c )
Verificare : 40+42+44=126
suma a trei nr pare consecutive este 2k+(2k+2)+(2k+4)=126
6k+6=126⇒ 6k=126-6=120⇒ k=120:6=20
Nr sunt 2*20=40, 42 si 44
6k+6=126⇒ 6k=126-6=120⇒ k=120:6=20
Nr sunt 2*20=40, 42 si 44