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Updated on: 12 Jun 2024, 01:22
Originally posted by prince00113 on 26 Dec 2018, 12:54.
Last edited by Bunuel on 12 Jun 2024, 01:22, edited 11 times in total.
Last edited by Bunuel on 12 Jun 2024, 01:22, edited 11 times in total.
Kudos
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Shirts: €47.60
Trousers: €68.20
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
81% (02:36) correct
19%
(02:45)
wrong
based on 2109
sessions
History
Date
Time
Result
Not Attempted Yet
In September 2010, Armando purchased 5 identically priced shirts and 3 identically priced pairs of trousers from a certain department store. Armando paid a total of €28.85 for the shirts and €38.97 for the trousers. In October 2010, the department store held a sale, taking 25% off of the September price of everything in the store. Armando returned to the store during the October 2010 sale and bought 11 of the shirts and 7 pairs of the trousers for some friends.
In the table, select how much Armando paid in October for the 11 shirts and 7 pairs of trousers, rounding for each item to the nearest cent. Make only one selection in each column.
In the table, select how much Armando paid in October for the 11 shirts and 7 pairs of trousers, rounding for each item to the nearest cent. Make only one selection in each column.
ID: 100377
| Shirts | Trousers | |
| €47.60 | ||
| €63.51 | ||
| €68.20 | ||
| €79.39 | ||
| €90.91 | ||
| €204.54 |
ShowHide Answer
Official Answer
Shirts: €47.60
Trousers: €68.20
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01 Aug 2019, 19:18
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Jkothari1
You can calculate this completely (the IR section gives a calculator), but you can also estimate quite quickly.
For the shirts, 28.85 can be rounded up to 30 euros for 5 shirts, or 6 euros per shirt in September. In October, these are 25% off, or 4.5 euros each. 11 shirts gives 49.50 euros (very easy to do 4.5 * 10 + 4.5). We know we rounded up a bit, so it's reasonable to assume that 47.60 is the right answer - plus there are no other options that are close.
For the trousers, round 38.97 up to 39 euros for 3 pairs, which is 13 euros per pair. At 25% off, these are about 9.75 each in October, I'm going to use 10 because it's an estimate. 10 euros per pair of trousers * 7 pairs gives 70 euros. We know that we overestimated by approximately 0.25 * 7 = 1.75, so we are very confident that 68.20 euros is the proper answer.
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