Răspuns :
b=0,5
a={1,2,3,4,5,6,7,8,9}
fiecarui a ii corespund cate doi b adica 0si 5
rezulta 9*2=18numere
a={1,2,3,4,5,6,7,8,9}
fiecarui a ii corespund cate doi b adica 0si 5
rezulta 9*2=18numere