Question

If
1+1=6
2+5=7
3+4=9
6+8=8 Then,

7+9=????​

Answer 1

9

Now, you can think of it from the words.

1+1 spelled out is ONE+ONE. There are 6 words. So, it's 6.

TWO+FIVE=7

THREE+FOUR=9

SIX+EIGHT=8

SEVEN+NINE=9