Question

Dan are 40 de baloane colorate.Baloanele verzi sunt de doua ori mai multe decat cele albe, iar cele rosii sunt cat cele verzi.Cate baloane albe, rosii si verzi are ?..dau coroana

Answer 1

v+r+a=40
2a=v
r=v
=>2a+2a+a=40
5a=40
a=8
v=r=16

Answer 2

V I--I--I
A I--I 
R I--I--I

Cate baloane albe sunt?
40÷5=8(baloane)
Cate baloane verzi sunt?
8×2=16(baloane)
Cate baloane rosii sunt?
8×2=16(baloane)

proba:8+16+16=40(baloane)