Guys,

This problem has been posted before. Here is one of the threads:

http://www.beatthegmat.com/gmat-prep-fr ... t9638.html

Sophia, maybe this tidbit will help clarify Cramya's explanation because I read the question incorrectly when I first looked at it:

2^2-1 for example is equivalent to 2^2 minus 1 NOT 2^(2-1).

Could someone re-post the question? Unfotunately, I am unable to see it in its current state. Best to all!

I think the trick to this problem is that when you are calculating the probability of the first choice, say it is an SUV, per the condition - the second choice can not be an SUV so you have to subtract the remaining SUVs from the total number of vehicles. So for example: Probability: Andre chooses a...

Probability question

One week a certain vehicle rental outlet has a total of 40 cars, 12 trucks, 28 vans, and 20 SUV's available. Andre and Barbara went to the vehicle rental outlet and chose 2 vehicles at random, with the condition that Andre and Barara would not select two of the same type of vehicle (in other words, ...

First try to find ALL the combinations a 6 letter sequence. Which is equal to: 6 * 5 *4 * 3 * 2 * 1 or 6!. Then we can try to eliminate duplicates in the sequence. If we break the sequence of letters as follows: 1 2 3 4 5 6 A B1 B2 C1 C2 C3 We can see that there are cases where there will be duplica...

I substituted numbers for x, y and t that would help pinpoint the correct answer choice. The numbers I chose were: X = 10 (Jogged 10 miles per hour) Y = 5 (Walked back at 5 miles per hour) T = 3 (Total time spent jogging and walking. 1 jogging/2 walking back) The distance Aaron jogged from his house...

I agree with C. If the current used tape's adhesiveness is more than sufficient to hold wounds closed for ten days, then the claim that "Newtape will improve healing because Newtape adheres twice as long as the currently used tape does" will be weakened, since it wouldn't matter how much l...