👤

Suma a 6 numere impare consecutive este 120. Determinati numerele

Răspuns :

a+b+c+d+e+f=120
b=a+2
c=a+4
d=a+6
e=a+8
f=a+10
a+a+2+a+4+a+6+a+8+a+10=120
6a+30=120
6a=120-30
6a=90
a=90:6
a=15
b=a+2=15+2=17
c=a+4=15+4=19
d=a+6=15+6=21
e=a+8=15+8=23
f=a+10=15+10=25
15+17+19+21+23+25=120