Question

Daca adun 5 numere consecutive impare, voi obtine 25.
Numarul mijlociu este:
a) 3 b)5 c) 7 d) 9

Answer 1

1+3+5+7+9=25
b) 5 este numarul mislociu

Answer 2

a+b+c+d+e=25
a,b,c,d,e=numere consecutive impare
a,b.c,d,e=?
a=1segment
b=1segment+2
c=1segment+2+2
d=1segment+2+2+2
e=1segment+2+2+2+2
25-20=5(5segmente.egale)
5÷5=1(a)
1+2=3(b)
1+2+2=5(c)
1+2+2+2=7(d)
1+2+2+2+2=9(e)
b)5=numar mijlociu
Sper ca te-am ajutat!