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15 Mar 2024, 04:59
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Jewelry was found only at sites where statuettes were not found.: Yes
Jewelry was found only at sites where pottery was also found.: Yes
Statuettes were found at each site where pottery was not found.: Yes
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
85%
(hard)
Question Stats:
39% (01:08) correct
61%
(01:01)
wrong
based on 3553
sessions
History
Date
Time
Result
Not Attempted Yet
For each of six archaeological excavation sites, the table shows whether pottery, jewelry, or statuettes were found at that site.
For each of the following statements about the sites in the table, select Yes if the statement is accurate based on the information provided. Otherwise, select No.
| Site | Pottery | Jewelry | Satuettes |
|---|---|---|---|
| A | yes | yes | no |
| B | no | no | yes |
| C | yes | no | yes |
| D | yes | yes | no |
| E | no | no | yes |
| F | yes | yes | no |
For each of the following statements about the sites in the table, select Yes if the statement is accurate based on the information provided. Otherwise, select No.
ID: 700276
| Yes | No | |
| Jewelry was found only at sites where statuettes were not found. | ||
| Jewelry was found only at sites where pottery was also found. | ||
| Statuettes were found at each site where pottery was not found. |
ShowHide Answer
Official Answer
Jewelry was found only at sites where statuettes were not found.: Yes
Jewelry was found only at sites where pottery was also found.: Yes
Statuettes were found at each site where pottery was not found.: Yes
15 Mar 2024, 08:51
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1. Jewelry was found only at sites where statuettes were not found.
Sort the table as per 'Jewelery'.
Check if every site that had yes for Jewelery had a no for statuettes.
A, D and F have a yes for jewelery and each of them has a no for statuettes.
So, YES
2. Jewelry was found only at sites where pottery was also found.
Sort the table as per 'Jewelery' again.
Check if every site that had yes for Jewelery had a yes for pottery.
A, D and F have a yes for jewelery and each of them has a yes for pottery.
So, YES
Does not matter that C has a yes for pottery but a no for jewelery, because we are concerned with only the opposite, that is there should be no site of jewelery where pottery was not found.
3. Statuettes were found at each site where pottery was not found.
Sort the table as per 'Pottery'.
Check if every site that had no for pottery had a yes for satuettes.
B and E have a no for pottery and each of them has a yes for satuettes.
So, YES
Does not matter what happens at sites where pottery was found. We are concerned only with sites that did not have pottery, and those are B and E.
Sort the table as per 'Jewelery'.
Check if every site that had yes for Jewelery had a no for statuettes.
A, D and F have a yes for jewelery and each of them has a no for statuettes.
So, YES
2. Jewelry was found only at sites where pottery was also found.
Sort the table as per 'Jewelery' again.
Check if every site that had yes for Jewelery had a yes for pottery.
A, D and F have a yes for jewelery and each of them has a yes for pottery.
So, YES
Does not matter that C has a yes for pottery but a no for jewelery, because we are concerned with only the opposite, that is there should be no site of jewelery where pottery was not found.
3. Statuettes were found at each site where pottery was not found.
Sort the table as per 'Pottery'.
Check if every site that had no for pottery had a yes for satuettes.
B and E have a no for pottery and each of them has a yes for satuettes.
So, YES
Does not matter what happens at sites where pottery was found. We are concerned only with sites that did not have pottery, and those are B and E.
chetan2u
Video discussion on this question: https://youtu.be/OyN_szEDEPw
The question is fairly tricky but can be simplified by using the concept of necessary and sufficient conditions. Keep in mind that much of non-Math logic that we talk about is based on necessary and sufficient conditions.
Jewelry was found only at sites where statuettes were not found.
"Only" indicates necessary conditions. 'Statuettes "no" is necessary for Jewelery "yes"'
Check everywhere where you have "yes" for jewellery. Do you have "no" for Statuettes there? Yes you do.
ANSWER: YES
Jewelry was found only at sites where pottery was also found.
"Only" indicates necessary conditions. Pottery "yes" is necessary for Jewellery "yes"
Check everywhere where you have "yes" for jewellery. Do you have "yes" for Pottery there? Yes you do.
ANSWER: YES
Statuettes were found at each site where pottery was not found.
Each/Every/Whenever/All indicate sufficient conditions. If pottery was "no", statuettes were "yes"
Check everywhere where pottery was "no". Are statuettes "yes"? Yes they are.
ANSWER: YES
Check discussions on necessary and sufficient conditions here:
https://youtu.be/MmlwcTlHZz8
https://youtu.be/BW8Ijrhjjq8
https://youtu.be/yQYkL1DSslA
