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Friday, August 17, 2018

Number puzzle!

1111 = 0
1289 = 3
2256 = 1
3388 = 4
9090 = 4
1868 = ?

Please solve the puzzle.

3 comments:

Eric Ho said...

This is a primary 1 maths.

If you cannot solve it, you must retake your primary school again.

Eric Ho said...

Here's my logic:

All with the same digit = 0
All with different digits = 3
A pair of the same digit = 1
2 Pairs of the same digits = 4

Do you know how to solve 1868 = ? now?

Eric Ho said...

Another to look at this answer is to look at the holes in the numbers.

If you look at the holes, 1868 = 5.