Question

afla suma a trei numere consecutive impare, ultimul fiind 27

Answer 1

Notam cel trei numere cu a, b si c

a,b,c-numere consecutive impare
c-27

c=27⇒b=25
b=25⇒a=23

a+b+c=23+25+27=75

Answer 2

c= b + 2

b= a + 2

c= 27

b= 27 - 2

b = 25

a= 25 - 2

a= 23