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udita

· started a discussion

· 1 Months ago

wrong answer (Question: 174543.4 )

only 2 will be the answer.
All printers are machines cannot happen . Its already given all machines are printers.
Some board are computer is a possibility . We cannot be sure and confirm the same. Atleast some boards are computer implies it's sure , which however is not true .. its just a possibility.

Question:
DIRECTIONS: In each of the questions below is given three or four statements followed by three or four conclusions. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically does not follow from the given statements disregarding commonly known facts.

Statements: 

All computers are machines. 

All machines are printers.

Some printers are keys.

No key is board.

 

Conclusion: 

I. All keys being machines is a possibility

II. Some boards being printer is a possibility.

III. All printers are machines.

IV. At least some boards are computers.

Options:
A) None follows
B) Only I and II
C) Only II
D) Only III or IV
E) None of the above
Solution:
Ans: (d) 



I. -  Follow

II. - Follow

III. - Not Follow

IV. - Not Follow

  Therefore, we have to find out the not follow in the given conclution.

Conclution Only III or IV  is the answer.

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