1 copil -65
al doilea -65x2=130
Total - 195kg
inseamna ca ceilalti trei au adunat in total465-195=270kg
segmente: c 3 /______/
c4 /______/+2 (numere consecutive pare)
c5/______/+4
c3+c4+c5=270,notez x un segment:
3x=270-6
3x=264, x=88 kg(c3)
c4: 90kg
c5:92kg