Data Suffiency-probability.. question on GMAT

[sapana.pandey]

Hey Guys, I got this question in my GMAT test, but I had never seen such type of question. Can anyone please take a look at it and try help me where to start. I am taking the test again in one month.

[deleted because problem is from a banned source - see below]

[hiteshwd]

[deleted because problem is from a banned source - see below]

[sapana.pandey]

That was really great. Thank you!

[tim]

This is HIGHLY HIGHLY HIGHLY illegal!!!!!!!!!! Do NOT *ever* post an actual GMAT question on the internet! I've deleted your question, and I hope the GMAT didn't grab a copy of this post before I changed it, because if they did they will almost certainly cancel your score and could ban you from ever taking the GMAT again..