Răspuns :
a |-----|
b |-----|-----|
c |-----|-----|-----|-----| } 56.
56 : 7 = 8 (a)
8 x 2 = 16 (b)
16 x 2 = 32 (c)
Verificare : 8 + 16 + 32 = 56 ( a+b+c).
b |-----|-----|
c |-----|-----|-----|-----| } 56.
56 : 7 = 8 (a)
8 x 2 = 16 (b)
16 x 2 = 32 (c)
Verificare : 8 + 16 + 32 = 56 ( a+b+c).
Algebric:
Notam nr cu a,b,c
a+b+c=5
a=b/2 => b=2a
c=2b => c=4a
a+2a+4a=56
7a=56
a=8
b=16
c=32
Notam nr cu a,b,c
a+b+c=5
a=b/2 => b=2a
c=2b => c=4a
a+2a+4a=56
7a=56
a=8
b=16
c=32