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A certain store reduces the original price of a particular item by 15% 22 Nov 2018, 01:43
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

Difficulty:

5% (low)

Question Stats:

93% (01:25) correct 7% (01:17) wrong based on 88 sessions

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A certain store reduces the original price of a particular item by 15%. It then reduces this new price by 10% to get the current price. What is the percent decrease from the original price to the current price?

A. 5%
B. 10.5%
C. 15%
D. 23.5%
E. 25%
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D
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A certain store reduces the original price of a particular item by 15% 22 Nov 2018, 01:48
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Bunuel
A certain store reduces the original price of a particular item by 15%. It then reduces this new price by 10% to get the current price. What is the percent decrease from the original price to the current price?

A. 5%
B. 10.5%
C. 15%
D. 23.5%
E. 25%
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let the price be 100

after reduction of 15%

100 - 15 - 85

after further reduced by 10% :

85 * 10% = 8.5

current price = 85 -8.5 = 76.5

% change = 100 - 76.5 = 23.5.

D is our answer.
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A certain store reduces the original price of a particular item by 15% 22 Nov 2018, 02:32
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Bunuel
A certain store reduces the original price of a particular item by 15%. It then reduces this new price by 10% to get the current price. What is the percent decrease from the original price to the current price?

A. 5%
B. 10.5%
C. 15%
D. 23.5%
E. 25%
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Let original price be 100$
100*.85= 85$ , then 85*.90= 76.5 change in price = 100-76.5= 23.5 option D
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A certain store reduces the original price of a particular item by 15% 24 Nov 2018, 16:07
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Bunuel
A certain store reduces the original price of a particular item by 15%. It then reduces this new price by 10% to get the current price. What is the percent decrease from the original price to the current price?

A. 5%
B. 10.5%
C. 15%
D. 23.5%
E. 25%
Show more
SHORTCUT

The shortcut below is useful for two successive percent changes,
especially when numbers are not round or easy to calculate.

If we have only two successive percent changes, A and B,
to calculate overall percent change quickly, use:

PERCENT CHANGE: \(A + B + \frac{A*B}{100}\)

\(A\) = first percent change = \(-15\)
\(B\) = second percent change = \(-10\)
(If the change is a decrease, use a minus sign.)

From above:

• \(A + B + \frac{A*B}{100}\) (percent is implied)

• \(-15 + (-10) + \frac{(-15)*(-10)}{100}=\)

• \((-25 + \frac{150}{100})=(-25+1.5)=-23.5\) %

Answer D

The shortcut is discussed HERE
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A certain store reduces the original price of a particular item by 15% 20 Mar 2021, 00:20
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