Question

Scrieti un sir de 7 numere consecutive care au proprietatea ca suma cifrelor lor este 28

Answer 1

a |-----|
b |-----|+1|
c |-----|+1|+1|
d |-----|+1|+1|+1|
e |-----|+1|+1|+1|+1|
f  |-----|+1|+1|+1|+1|+1|
g |-----|+1|+1|+1|+1|+1|+1|      } 28.

28 - 21 = 7 ( segmente egale)
7 : 7 = 1 ( a) 
1 +1 = 2 (b)
1 + 1 +1 = 3 (c)
1 +1+1+1 = 4 (d)
1+1+1+1+1 = 5 (e)
1+1+1+1+1+1 = 6 ( f )
1+1+1+1+1+1+1 = 7 (g ) 
Verificare :  1+2+3+4+5+6+7 =28 ( a +b +c +d +e +f +g ).

Answer 2

1+2+3+4+5+6+7=28
Sper sa te ajute!!