If p is an integer and m = -p + (-2)^p, is m^3 > 1
1) p is even
2) p^3 < -1
OA - C
1) p is even
2) p^3 < -1
OA - C
Last edited by shankar.ashwin on Wed Nov 16, 2011 11:08 am, edited 3 times in total.
m = -p + (-2)^p
Statement 1
p is even
if p is even and greater than 0
(-2)^p > p
therefore, m>0 and even
hence, m^3>1
Sufficient
Statement 2
p^3 <= -1
lets say p=-1
m = 1 -(1/2) = 1/2
(1/2)^3 < 1
p = -2
m = 2 + 1/4 = 9/4
(9/4)^3 > 1
Insufficient
Option A
Whats OA?
