Apply your Logic
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Given that
(78)^9 = 6
And (69)^4 = 11
Can you find out
(99)^2 =?
(Note: This is Logical not Mathemetical) 
Answer is 16!
(78)^9 = 6 ==> 7+8-9 = 6
And (69)^4 = 11 ==> 6+9-4
Hence (99)^2 ==> 9+9-2 = 16
Your Answer
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