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Heseraj
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EMPOWERgmatRichC
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Heseraj
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Current Student
Joined: 04 Jan 2016
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Location: United States (NY)
GMAT 1: 620 Q44 V32
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EMPOWERgmatRichC
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GMAT 1: 800 Q51 V49
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GMAT 1: 800 Q51 V49
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Hi Heseraj,

Assuming that you've transcribed this question correctly, there's something "off" about the math in this question. Here's why:

We're told that the sale price is 10% above the cost price. For example...

Cost price = $100
Sale price = $110

The prompt then tells us that there is a 10% drop in the cost price, so we now have....

Cost price = $90
Sale price = $110

However, at this point, that same Sale price is NOT 20% greater than the Cost price; it's 20/90 = 2/9 = 22.222222% greater than the cost price. This result occurs regardless of the numbers that you use. Thus, there's something wrong with the example that you're listing.

All of that having been said, this question is really just about Percentage Change (and you should be able to search for that concept).

GMAT assassins aren't born, they're made,
Rich
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Heseraj
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Thank you very much Rich.
You are awesome. I wish i've purchased EmpowerGMAT in my early stages of GMAT journey.
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