Răspuns :
400 × 5 = 2000 zboruri face o randunica in 5 zile
2000+2000 = 40000 zboruri face 2 randunele in 5 zile
Raspuns corect B
2000+2000 = 40000 zboruri face 2 randunele in 5 zile
Raspuns corect B
b.4000
1 randunica in 5 zile face 2000 zboruri
adica 5x400=2000
iar 2 randunici 2000x2=4000
1 randunica in 5 zile face 2000 zboruri
adica 5x400=2000
iar 2 randunici 2000x2=4000