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trebuie in doua moduri repede te rog.

Trebuie In Doua Moduri Repede Te Rog class=

Răspuns :

Primul mod ----

f |-----|-4-| } 24 elevi
b |-----|

24-4=20 (2 segmente egale)
20:2=10 (un segment)

f=10+4
f=14
b=10

Al doilea mod----

f+b=24
f=b+4
=======
b+4+b=24
2×b=24-4
2×b=20
b=20:2
b=10
f=10+4
f=14