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10 Jun 2016, 00:54
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D
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Difficulty:
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Question Stats:
95% (01:11) correct
5%
(01:20)
wrong
based on 77
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A case of 12 rolls of paper towels sells for $9. The cost of one roll sold individually is $1.What is the percent of savings per roll for the 12-roll package over the cost of 12 rolls purchased individually?
A. 9%
B. 11%
C. 15%
D. 25%
E. 90%
A. 9%
B. 11%
C. 15%
D. 25%
E. 90%
FightToSurvive
Joined: 18 Sep 2014
Last visit: 15 Dec 2016
Posts: 198
Given Kudos: 5
Schools: ISB '18 (A) Fisher '19 (II) Smeal Penn State "19 (A$) Kelley '19 (S) Olin '19 (S) Simon '19 (A$) Broad '19 (S)
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10 Jun 2016, 00:59
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A case of 12 rolls of paper towels sells for $9. The cost of one roll sold individually is $1.What is the percent of savings per roll for the 12-roll package over the cost of 12 rolls purchased individually?
A. 9%
B. 11%
C. 15%
D. 25%
E. 90%
Cost of 12 paper towels individually = 1*12=12
Cost of a set of 12 paper towels = 9
Cost of one roll = 9/12 = 3/4 = 0.75
Savings per roll = 1-.75 = 0.25
% of savings is = .25/ 1 *100 = 25% D is the answer.
A. 9%
B. 11%
C. 15%
D. 25%
E. 90%
Cost of 12 paper towels individually = 1*12=12
Cost of a set of 12 paper towels = 9
Cost of one roll = 9/12 = 3/4 = 0.75
Savings per roll = 1-.75 = 0.25
% of savings is = .25/ 1 *100 = 25% D is the answer.
10 Jun 2016, 02:12
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Bunuel
Price for a case of 12 rolls = $9
Price of 12 rolls individually = $12
Saving on 12 rolls = (3/12)*100 = 25%
Correct Option: D
