Cindy has her eye on a sundress but thinks it is too expensi

Question

Cindy has her eye on a sundress but thinks it is too expensive. It goes on sale for 15% less than the original price. Before Cindy can buy the dress, however, the store raises the new price by 25%. If the dress cost $68 after it went on sale for 15% off, what is the difference between the original price and the final price?

$0.00
$1.00
$3.40
$5.00
$6.80

A. $0.00 
B. $1.00 
C. $3.40 
D. $5.00 
E. $6.80

Bunuel · Accepted Answer

0.85*{Original Price} = $68 --> {Original Price} = $80.

{Final Price} = $68*1.25 = $85.

The difference = $85 - $85 = $5.

Answer: D.

Hope it's clear.

Zarrolou · Answer

Cindy has her eye on a sundress but thinks it is too expensive. It goes on sale for 15% less than the original price. Before Cindy can buy the dress, however, the store raises the new price by 25%. If the dress cost $68 after it went on sale for 15% off, what is the difference between the original price and the final price?

$0.00
$1.00
$3.40
$5.00
$6.80

$0.00 
$1.00 
$3.40 
$5.00 
$6.80

OriginalPrice*\frac{85}{100}=68  =>  OP=80 $

Than the discouts/raises are as follow  80*\frac{85}{100}*\frac{125}{100}=68*\frac{5}{4}=85

Difference= 85-80=5 $

husker2010 · Answer

You can use this way if you are uncomfortable multiplying by decimals:

Original Amount:
Using this percent change formula: NA = OA(1+/-(p/100))
Our NA = 68 and our percent change = 15%   less   than
so, 68 = OA(1-(15/100))
68 = OA(85/100)
OA = 80

Final Amount:
Using this percent change formula: NA = OA (1+/-(p/100))(1+/-(p/100)).............
Our NA is the unknown final price
Plug in your original price for OA
NA = 80(1-(15/100))(1+(25/100))
NA = 80(85/100)(125/100)
NA = 85

We use (1-(15/100)) because our sale price is 15% less than original
We use (1+(25/100)) because our final price is 25% more than our sale price

Subtract
85-80=5
D

PareshGmat · Answer

Let original price = x
Price with 15% disc = 85x/100................. (1)
Increase of 25% on (1) = 85x/100 * 5/4.................... (2)

From the information given, 85x/100 = 68, so x = 80
Placing value of x in (2) = 85
Difference = 85-80 = 5

saurabh9gupta · Answer

My Approach:

given --
let x be the original price

.85x = 68
x =80

new price = 68*1.25 = 85

difference = 85-80 = 5

saukrit · Answer

Let original price be x

After a discount of 15%
0.85*x=68
x=(68*100)/85 = (68*20)/17= (4*20)=80

After an increase of 25% on $68 price, the price becomes, 1.25*68= 5/4*68= 5*17 = $85
 Difference between original price x=$80 and the final price of $85 is $5

Hence, the answer is D

pandajee · Answer

For me the learning from this question is:
"I should remember the  Table of 17  else it will take more time to solve this problem".

Other important thing is that the concept of  %  should be clear. 
>Here when we say the product is on sale for 15%, this implies the cost of product after discount is 85% of actual cost. => 0.85 x Original cost.
>Next, 25% increase in price is equal to 1.25 x Original cost (in case of above question- $68 on which the increase of 25% was applied)... Hit   KUDOS   if my concept behind solving this problem helped you understand the question & solution too.

MikeScarn · Answer

This is a question that tries to suck you into doing long and meaningless long-division. We never need to do that on the gmat.

Solving for Original Price

Given: Original Price * 85/100 = 68.

Calculate with fractions rather than decimals. We should know 85/100 = 17/20.

Original Price =  \frac{20}{17}  * 68

But before we multiply 68*20, it may be helpful to prime factorize 68 or 20.

68=2*34 =  2*2*17 ....... aha! We'll be able to cancel out our 17.

\frac{2*2*17*20}{17}  = 2*2*20 =  80

Solving for Final Price

68 *  \frac{5}{4}  =  \frac{2*2*17*5}{4}  = 17*5 =  85

Archit3110 · Answer

first find original price of dress
.85*x = 68
x= $80
now we have ; 80*.85*1.25 ; $85
∆ 85-80 ; $5
OPTION D

ScottTargetTestPrep · Answer

We can create the equation in which n = the original price of the dress:

0.85n = 68

n = 68/0.85 = 80 dollars

Thus, the final price is 68 x 1.25 = 85 dollars.

So, the difference between the final an original price is 85 - 80 = 5 dollars.

Answer: D

ManishaPrepMinds · Answer

Original Price: 
We know sale price = $68 (after 15% off)
Sale price = Original × (1 - 0.15)
$68 = Original × 0.85
Original = $68 ÷ 0.85
Original = $80

Final Price: 
Start with sale price = $68
Increase by 25%: $68 × 1.25 = $85

Original price = $80
Final Price = $85

Difference: 
Final - Original
$85 - $80 = $5.00
 Answer: D

bumpbot · Answer

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Cindy has her eye on a sundress but thinks it is too expensi

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