144, 121, 100, 81, 64, ?	Choices
A) 9
B) 16
C) 25
D) 36
E) 49
Explanation :   The pattern is 12^2, 11^2, 10^2, 9^2, 8^2, ...   So next number is 7^2 = 49   Answer : Option 49
<result>E</result>
144, 121, 100, 81, 64, ?