Question

*Here comes a killer puzzle :* 9999=4 8888=8 1816=3 6666=4 8686=6 1212=0 6989=? Let's see can u crack this one... *HINT: No Maths to solve this... Just Observe... Observe... and think* Please submit your answer with justification.

Answer 1

Given:

9999=4 8888=8 1816=3 6666=4 8686=6 1212=0

To find:

6989=?

Solution:

The count of the number of holes present in the digits of a given number.

From given, we have,

9999 = 4

The number 9999 has 4 holes.

8888 = 8

The number 8888 has 8 holes.

6666 = 4

The number 6666 has 4 holes.

8686 = 6

The number 8686 has 6 holes.

1212 = 0

The number 1212 has 0 holes.

6989 = 5

The number 6989 has 5 holes.

The digit 6 has 1 hole

The digit 9 has 1 hole

The digit 8 has 2 hole

The digit 9 has 1 hole

∴ 6989 = 5