Hi nehakhas1,

1. I'm not sure exactly what you mean by a Manhattan GMAT CD. We don't sell CDs and only distribute our CAT exams online. For example, the CAT Exams that come with Manhattan GMAT Strategy Guides must be activated online using a 32-digit serial code on the back inside cover of the guide.

2. If you purchase any book, you can gain access to the exams. As for how much it would cost, I'm not sure, but I can say that we sell the guides for $26.

3. Manhattan GMAT Exams mimic the exam as best as possible, but are only good indicators of your performance if you treat it like a real GMAT. Skipping the AWA section, pausing in sections, and not treating it like a real GMAT will cause your score to deviate from what you would normally receive on a real GMAT. However, if you take the CAT exams under similar testing conditions, your score should be within 40-50 points of what you would normally receive on a real GMAT test.

4. You will receive access to 6 CAT exams if you purchase a Strategy Guide.

I hope this helps!

Best,