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Updated on: 22 Jul 2014, 01:29
Originally posted by krishnasty on 09 Oct 2011, 01:28.
Last edited by Bunuel on 22 Jul 2014, 01:29, edited 1 time in total.
Last edited by Bunuel on 22 Jul 2014, 01:29, edited 1 time in total.
Renamed the topic and edited the question.
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
95%
(hard)
Question Stats:
50% (02:54) correct
50%
(03:31)
wrong
based on 48
sessions
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Not Attempted Yet
A new sales clerk in a department store has been assigned to mark sale items with red tags, and she has marked 30% of the store items for sale. However, 20% of the items that are supposed to be marked with their regular prices are now marked for sale, and 55% of the items that are supposed to be marked for sale are marked with regular prices. What percent of the items that are marked for sale are supposed to be marked with regular prices?
A. 30%
B. 35%
C. 40%
D. 45%
E. 50%
OPEN DISCUSSION OF THIS QUESTION IS HERE: a-new-sales-clerk-in-a-department-store-has-been-assigned-to-130912.html
A. 30%
B. 35%
C. 40%
D. 45%
E. 50%
OPEN DISCUSSION OF THIS QUESTION IS HERE: a-new-sales-clerk-in-a-department-store-has-been-assigned-to-130912.html
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This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
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09 Oct 2011, 05:27
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krishnasty
Use matrix;
Let Supposedly Regular=R
| Supposedly Regular | Supposedly Sale | Total | |
| Marked Regular | 0.55(100-R) | 70 | |
| Marked Sale | 0.2R | 0.45(100-R) | 30 |
| Total | R | 100-R | 100 |
0.2R+0.45(100-R)=30
0.2R+45-0.45R=30
-0.25R=-15
R=60
So,
0.2R/30=0.2*60/30=0.4=40%
Ans: "C"
22 Jul 2014, 01:30
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krishnasty
# of items 100 (assume);
# of items that should be marked for sale is x;
# of items that should be at the regular price is 100-x;
# of items that are actually marked for sale 0.3*100=30.
Let's see how many items are marked for sale:
20% of 100-x (20% of the items that are supposed to be marked with their regular prices (100-x) are now marked for sale);
100-55=45% of x (since 55% of the items that are supposed to be marked for sale (x) are marked with regular prices, then the remaining 45% of x are marked for sale);
So, 0.2(100-x)+0.45x=30 --> x=40 (# of items that should be marked for sale).
So, # of the items that are supposed to be marked with their regular prices is 0.2*(100-40)=12, which is 12/30*100=40% of # of items that are actually marked for sale.
Answer: C.
OPEN DISCUSSION OF THIS QUESTION IS HERE: a-new-sales-clerk-in-a-department-store-has-been-assigned-to-130912.html
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Problem Solving (PS) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
