Question

suma a cinci nr. naturale pare consecutive este 60 . Aflati cele cinci nr .

Answer 1

a+b+c+d+e=60           60:5 =12   12+2=14  12+2+2=16  12+2+2+2=18  12+2+2+2+2=20

Answer 2

2k+2k+2+2k+2+2+2k+2+2+2+2k+2+2+2+2=60 sau mai simplu
2k+2k+2+2k+4+2k+6+2k+8=60
10k+20=60
10k=60-20
10k=40
k=40/10
k=4(primul numar)
4+2=6(al doilea numar )
6+2=8(al treilea numar)
8+2=10(al patrulea numar)
10+2=12(al cincilea numar)