Hi,
I request your help to find the answer for the below question.
What is the value of integer n ?
(1) n ( n + 1) = 6
(2) 2^2n = 16
1 is definitely not sufficient.
2 Since 2^2n = 16 this can be rewritten as 2^2n = 2^4 or 2^2n = (-2)^4 in the later case we cannot equate the left hand side and the right hand side,so I think the answer should be E
But as per OG solution the correct answer is B.
Can anyone please clarify where I am going wrong.
I request your help to find the answer for the below question.
What is the value of integer n ?
(1) n ( n + 1) = 6
(2) 2^2n = 16
1 is definitely not sufficient.
2 Since 2^2n = 16 this can be rewritten as 2^2n = 2^4 or 2^2n = (-2)^4 in the later case we cannot equate the left hand side and the right hand side,so I think the answer should be E
But as per OG solution the correct answer is B.
Can anyone please clarify where I am going wrong.
