Examine the following statements: 1. All colours are pleasant 2. Some colours are pleasant 3. No colour is pleasant 4. Some colours are not pleasant Given that the statement 4 is true, what can be definitely concluded?

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Q: 71 (IAS/2010)
Examine the following statements:
1. All colours are pleasant
2. Some colours are pleasant
3. No colour is pleasant
4. Some colours are not pleasant
Given that the statement 4 is true, what can be definitely concluded?

question_subject: 

Logic/Reasoning

question_exam: 

IAS

stats: 

0,12,10,5,12,3,2

keywords: 

{'colours': [0, 2, 4, 9], 'colour': [11, 6, 13, 28]}

If statement 4 is true, then it means that there are some colors that are not pleasant. However, this does not give any information about whether all colors are pleasant (statement 1) or whether some colors are pleasant (statement 2). Therefore, we cannot conclude that options 1 or 2 are true. Similarly, statement 3 cannot be concluded as true based on statement 4 alone. Therefore, the correct option is option 4: "Some colors are not pleasant."

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