13 March 2023 – Morning Shift – UGC NET Paper-1

Total Questions: 50

21. In a family, the sum of the ages of Father, Mother and Son is 90 years as on today. The age of father is 6 times to that of the son. The age of son will be half to that of his father when the sum of the ages of all the members i.e father, mother and son becomes exactly twice of the sum of their ages today. Find the present age of mother.

Correct Answer: (3) 37.5 years

22. There are two boxes of apples having high quality apples. Box A contains 1/5 more apples than box B. If box B has 8 apples less than the box A, then find out how many apples are there in box A?

Correct Answer: (1) 48

23. In a certain code language:

A. '527' means 'Tea is hot'
B. '28' means 'hot milk'
C. '859' means 'milk is dense'

Which of the digits indicate 'tea' and 'dense' respectively.

Correct Answer: (2) '7' and '9'

24. What number would replace question mark (?) in the series given below?

3, 6, 11, 20, 37, 70, 135, 264, ?

Correct Answer: (3) 521

25. Sum of the squares of 3 consecutive odd numbers is 2531. Find how many of these numbers will be prime numbers?

Correct Answer: (3) 2

26. Which fallacy is commited in the following statement - " No one has ever proven that God exists. Therefore God does not exist".

Correct Answer: (1) Appeal to Ignorance

27. "If you read Professor Harry's book, you should be able to recognise and succesfully attack fallacious reasoning, and you are able to do that. Therefore, you must have read Professor Harry's book". Which formal fallacy is committed in the above argument?

Correct Answer: (2) Affirming the consequent

28. Which of the following statements are logically equivalent?

A. All professors are competent scholars.
B. No professors are non-competent scholars.
C. No competent scholars are professors.
D. All non-competent scholars are non-professors.

Choose the correct answer from the options given below:

Correct Answer: (4) A, B and D only

29. Which of the following statements are so related that they cannot both be true but can both be false?

A. All physicists are outstanding teachers.
B. No physicists are outstanding teachers.
C. Some physicists are outstanding teachers.
D. Some physicists are not outstanding teachers.

Choose the correct answer from the options given below:

Correct Answer: (1) A and B only

30. According to classical Indian school of logic (Nyaya) Which fallacy is committed in the following statement. "All things are non-eternal because they are knowable"?

Correct Answer: (3) Anupasamhāri