A is the average (arithmetic mean) of the first 7 positive multiples of 8 and B is the median of the first 3 positive multiples of positive integer n. If the value of A^2 – B^2 is zero, what is the value of n?	Choose one:	A) 10	B) 12	C) 16	D) 24	E) 32
If A^2 - B^2 = 0, then let's assume that A = B.   A must equal the 4th positive multiple of 4, thus A = 32, which also equals B.   B is the second positive multiple of n, thus n = 32/2= 
<gadget id="calculator">32/2</gadget>
<output>16</output>
16.   The answer is 16.
<result>C</result>
A is the average (arithmetic mean) of the first 7 positive multiples of 8 and B is the median of the first 3 positive multiples of positive integer n. If the value of A^2 – B^2 is zero, what is the value of n?