Question

trei numere au suma 156, iar jumatatile lor sunt numere consecutive. sa se afle numerele.

Answer 1

a+b+c=156

a=2e

b=2f

c=2g

e+f+g=156:2=78

e+f+g=78

e,f,g=nr consecutive

f=e+1

g=e+2

e+e+e+1+2=78

3e+3=78

3e=75

e=25

f=26

g=27

a=2e=25 ori 2=50

b=2f=26 ori 2=52

c=2g=27 ori 2=54

Deci a=50

b=52

c=54

Verificare

a+b+c=156

50+52+54=156