DAY 479

If .......

9 + 3 = 15

9 + 7 = 47

8 + 5 = ? 

HINT:

The + sign may or may not mean plus.

Answer:

 

8 + 5 = 27

 

Explanation:

Multiply the two given numbers, then subtract their sum:

 

9 X 3 = 27

27 - 12 = 15, etc.