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quarter and nickel

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by DanaJ » Tue Mar 10, 2009 5:24 am
Quarters = 25 cents
Nickles = 5 cents.
This means that x quarters are 25*x = 25x cents.
x + 32 nickles will be 5*(x + 32) = 5(x + 32) cents.
This is why 25x = 5(x + 32)
25x = 5x + 160
20x = 160
x = 8.
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by karmayogi » Tue Mar 10, 2009 6:40 am
DanaJ wrote:Quarters = 25 cents
Nickles = 5 cents.
This means that x quarters are 25*x = 25x cents.
x + 32 nickles will be 5*(x + 32) = 5(x + 32) cents.
This is why 25x = 5(x + 32)
25x = 5x + 160
20x = 160
x = 8.
I didn't know this concept of nickles and quarters. What's the source of the question? Is such questions expected in GMAT?
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by deepoe » Tue Mar 10, 2009 6:57 am
karmayogi wrote:
DanaJ wrote:Quarters = 25 cents
Nickles = 5 cents.
This means that x quarters are 25*x = 25x cents.
x + 32 nickles will be 5*(x + 32) = 5(x + 32) cents.
This is why 25x = 5(x + 32)
25x = 5x + 160
20x = 160
x = 8.
I didn't know this concept of nickles and quarters. What's the source of the question? Is such questions expected in GMAT?
These are the coin question, I were practicing it from my GMAT book.

Nickle = 5
quarter = 25
dime = 10
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