# If 7 + 5 = 0; 6 + 8 = 3; 9 + 9 = 2; 9 + 1 = 1 and 8 + 7 = 2 then 4 + 5 = ?

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If 7 + 5 = 0; 6 + 8 = 3; 9 + 9 = 2; 9 + 1 = 1 and 8 + 7 = 2 then 4 + 5 = ?
posted Nov 19, 2018

The '+' operation between the 2 numbers here takes The number of loops in these numbers and adds them together.
So 7 + 5 = 0 as (7 => has 0 loops and so does 5)
6 + 8 = 3 as (6 => has 1 loop and 8 => has 2 loops)
In that sense
4 + 5 = 1 is the answer.

what did you mean by loop clarify plzz
Here by loop I meant holes with unbroken borders.

7+5=0, 6+8=3, 9+9=2, 9+1-1, 8+7=2, 4+5=2

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