Hi Aniron, Thanks for your interest. that have followed the 12th edition, I decided to shift how I distribute my work from a book to software. You can gain access to all my solutions by using the GMATFix App , meant to be used in conjunction with the Study Guide I have posted online. Even better, if...

Please share what was wrong / how to fix. It would help others who run into a similar problem.

Have you restarted the App? Have you logged in? What happens when you try to play a video? You can report a bug or send feedback via the FEEDBACK button on the App's launch screen.

-Patrick

This looks familiar; I think someone posted this question recently. The answer is C. I go through the question in detail in the full solution below (taken from the GMATFix App).



-Patrick

The answer is B. I go through the question in detail in the full solution below (taken from the GMATFix App).



-Patrick

We know that b is an integer, but c may not be. Statement 1 : If c is an integer, then 4c+2=b is even. 3b+1 is therefore odd and is not divisible by 10. If c is not an integer, we can make 4c+2 anything we want. If b=4c+2=3, then 3b+1 would equal 10 and would be divisible by 10. NOT SUFFICIENT. Stat...

Number of rotations depends on the ratio of 100 meters distance to the circumference of the wheel. For instance, if 100 = 4*C, it will take 4 rotations to cover the distance. Since we know the total distance, all we need is the circumference. Rephrase: What is the circumference? The answer is A . I ...

The negative exponent is the reciprocal of its positive counterpart. So 2^-3 = (1/2)^3, and (1/2)^-3 = 2^3. So we're really asked to find 2^3 * 4^2 * 16. Notice that they are all powers of 2, so you can put them all in terms of the same base: 2^3 * (2^2)^3 * 2^4. The answer is B. I go through the qu...