# If 16-2=2, 9-3=0, 81-1=8, Then What is 64-4=?

**Answer: (1) 4
Explanation:-**

16 – 2 = 2 means 16 is the square 4 then, 4 – 2 = 2,

9 – 3 = 3 means 9 is the square of 3 then, 3 – 3 = 0,

81 – 1 = 9 means 81 is the square of 9 then, 9 – 1 = 8,

64 – 4 = 4 means 64 is the square of 8 then, 8 – 4 = 4.

Hence, the answer is (1) A.