D looks fine. Whats the OA here?

Is there anyway to do this with base 3? 3^(2(2a+1+b))?

I don't quite understand, can you expand on that thought. I guess this is veering off but can you speak on 1) when can u divide and 2) when can't you? Mitch you are right. I drew the X^2>x wrong. X^2>x => X<0 or X>1. E is right. But can you really divide by x^2? I know that's a legal algebra operati...

That's what I got as well. Here's the OA explanation. Anurag, Isn't the error in their method is that they divided by x^2? because that eliminates answer? When can you divide by X^2 and when can't you? I guess in an equation and you know for sure its not zero? Explanation: x2 is greater than x for a...

Geva, I had similar logic. Please let me know if I did anything wrong: 1) Consecutive 7 number and Consecutive 9 numbers with equal sum. Sum of consecutive of 7 is a multiple of 7 and Sum of consecutive of 9 is multiple of 9. Since they are equal the set has to be multiples of both/ 63. Since X has ...

Sets

At least 100 employees in a certain company have management experience. If 15 percent of the employees in the company who have sales experience also have management experience, do more employees have sales experience than management experience? (1) 72 employees in the company have both sales experie...

the statement is correct and u are right. but i think its implying that X is even. Also, the explanation said so. let's just say they explicitly state that every factor greater than 1 is even. would the problem still make sense to you? If x is an integer greater than 1, is x equal to 2^k for some po...