If a and b are both positive integers, is (b^(a+1))-(b*a^b) odd?
1. a+(a+4)+(a-8)+(a+6)+(a-10) is odd
2. (b^3)+3(b^2)+5b+7 is odd
OA - D
I did figure out that statement 2 is sufficient. How to work out with statement 1?[/spoiler]
1. a+(a+4)+(a-8)+(a+6)+(a-10) is odd
2. (b^3)+3(b^2)+5b+7 is odd
OA - D
I did figure out that statement 2 is sufficient. How to work out with statement 1?[/spoiler]
Last edited by surajgarg on Fri Jul 23, 2010 8:36 am, edited 1 time in total.
