Question : if 9999 = 4, 8888 = 8, 1816 = 6, 1212 = 0, then 1919 = ?

The answer is:

1919=2

Step-by-step explanation:

Let us assume the numbers as follows:

9=1

8=2

1=0

6=4

2=0

Hence, when we substitute the assumed values in each of the given numbers we obtain the result for each as follows:

1)

9999=1+1+1+1

9999=4

2)

8888=2+2+2+2

8888=8

3)

1816=0+2+0+4

1816=6

4)

1212=0+0+0+0

i. e.

1212=0

5)

1919=0+1+0+1

i. e.

1919=2