Question

If 9999 = 4 8888 = 8 1816 = 6 1212 = 0 then 1919 = ______

Answer 1

Answer:

4 is the answer.

Explanation:

9999 has 4 enclosed areas.

8888 has 8 enclosed areas.

1816 has 3 enclosed areas and 2 other digits(So 3x2=6)

1212 has 0 enclosed areas(So 0x4=0)

Similarly,

1919 has 2 enclosed areas and 2 other digits

So, 2x2=4 is the answer.