Hi All,

This question has a great "pattern-matching" shortcut built into it, but you'll have to pay attention to the answer choices to see it.

We're told that a store owner raises the price of an item by 10%. We're asked which of the 5 answers could NOT possibly be the new price.

In this scenario, it's real easy to come up with a simple example of what the store owner did.

IF....

price = $1, then new price = $1.10

You'll notice that answer is Answer A.

Answer B is just 8 times $1.10, which makes sense because 10% of 8 is 0.80...

IF...

price = $8, then new price = $8.80

So the shortcut is just to find the answers that are multiples of $1.10

Answer C is another quick "find" - it's 10 times $1.10

Between D and E, you have to do a little work, but if you "break down" E, you get....

78.10 = 77.00 + 1.10

77.00 = 70 + 7 (which is 10% of 70)

1.10 = 1 + 0.1 (which is 10% of 1)

So E is another multiple of $1.10

That leaves just one answer....

Final Answer:

GMAT assassins aren't born, they're made,

Rich

_________________

Official Guide 2016 Question Breakdown:

http://gmatclub.com/forum/empowergmat-blog-198415.html#p1527977

Rich Cohen

Rich.C@empowergmat.com

http://www.empowergmat.com

GMAT Club Verified Reviews for EMPOWERgmat & Special Discount

EMPOWERgmat Podcast - A Wild Secret About The GMAT Algorithm