Premises : All metals are grey in colour. Some metals are heavy. Conclusion :I. All heavy metals are grey in colour. II. All light metals are not grey in colour.

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Q: 122 (CAPF/2015)
Premises : All metals are grey in colour. Some metals are heavy. Conclusion :I. All heavy metals are grey in colour. II. All light metals are not grey in colour.

question_subject: 

Science

question_exam: 

CAPF

stats: 

0,20,25,20,3,5,17

keywords: 

{'light metals': [0, 0, 0, 1], 'metals': [1, 2, 2, 7], 'heavy metals': [1, 0, 0, 0], 'colour': [11, 6, 13, 28], 'conclusion': [0, 1, 1, 6]}

The premises state that all metals are grey in colour, and that some metals are heavy. The conclusion is in two parts: I. All heavy metals are grey in colour, and II. All light metals are not grey in colour.

Option 1 states that only conclusion I is correct. Let`s evaluate each option:

Option 1: Only I - This means that only conclusion I is correct. This option aligns with the premises because it states that all heavy metals are grey in colour. Since all metals are grey according to the premises, it is reasonable to conclude that heavy metals, which are a subset of metals, are also grey in colour.

Option 2: Only II - This means that only conclusion II is correct. This option is not supported by the premises because it states that all light metals are not grey in colour. The premises do not provide any information about the colour of light metals.

Option 3: Both I and II - This means that both conclusions I and II are correct. However, conclusion II is not supported by the premises, so this option is not correct.

Option 4: Neither I nor II - This means that neither conclusion I nor II is correct. However, the premises support conclusion I, so this option is not correct.