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NDA 2025 Question Paper & Answers

The official NDA 2025 question papers, with the official answer key. Attempt as a real timed exam (with negative marking) or switch to practice mode for instant per-question answers and explanations.

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Official PYQ

NDA & NA (I) 2025 General Ability Test (13 April 2025)

150 Mins 600 Marks
150Questions
600Max Marks

Sample questions from NDA & NA (I) 2025 General Ability Test (13 April 2025)

1Directions:Read the following passage carefully and answer the questions that follow by selecting the correct option from the given options, based solely on the passage. Mark your answer on the Answer Sheet accordingly.
An attempt to determine the number of languages in the world is affected by other factors. A few new languages do continue to be discovered, even these days, as unexplored regions of the world begin to be opened up. The discovery does not usually take place straight away. Often there are similarities with an already known language which make the investigators assume that what they have found is just a dialect of that language. Only after a considerable penod of contact does it transpire that the speech is so different that it has to be considered a different language. It takes a language survey to establish the facts,and there are still many countnes where such surveys are incomplete or have not even begun. The people may be known but the identity of their language may not be because many such peoples are bilingual or multilingual, and converse with outsiders in lingua franca, it may take a while before linguists come to realize that there is an ethnic language there at all. Which one of the following is NOT the reason for the difficulty in estimating the number of languages of the world?
  • A) New languages continue to be discovered
  • B) There are still unexplored regions
  • C) New languages are considered a dialect of a known language
  • D) People who speak the language do not claim their language
Answer: D
2Directions:Read the following passage carefully and answer the questions that follow by selecting the correct option from the given options, based solely on the passage. Mark your answer on the Answer Sheet accordingly.
An attempt to determine the number of languages in the world is affected by other factors. A few new languages do continue to be discovered, even these days, as unexplored regions of the world begin to be opened up. The discovery does not usually take place straight away. Often there are similarities with an already known language which make the investigators assume that what they have found is just a dialect of that language. Only after a considerable penod of contact does it transpire that the speech is so different that it has to be considered a different language. It takes a language survey to establish the facts,and there are still many countnes where such surveys are incomplete or have not even begun. The people may be known but the identity of their language may not be because many such peoples are bilingual or multilingual, and converse with outsiders in lingua franca, it may take a while before linguists come to realize that there is an ethnic language there at all. Which one of the following is a way to establish the discovery of a new language?
  • A) By establishing contact over a period of time with the speakers of the language
  • B) By finding the similarities of the language with other languages
  • C) By comparing with the lingua franca of the region
  • D) By conducting a survey of all languages of the region
Answer: A
3Directions:Read the following passage carefully and answer the questions that follow by selecting the correct option from the given options, based solely on the passage. Mark your answer on the Answer Sheet accordingly.
An attempt to determine the number of languages in the world is affected by other factors. A few new languages do continue to be discovered, even these days, as unexplored regions of the world begin to be opened up. The discovery does not usually take place straight away. Often there are similarities with an already known language which make the investigators assume that what they have found is just a dialect of that language. Only after a considerable penod of contact does it transpire that the speech is so different that it has to be considered a different language. It takes a language survey to establish the facts,and there are still many countnes where such surveys are incomplete or have not even begun. The people may be known but the identity of their language may not be because many such peoples are bilingual or multilingual, and converse with outsiders in lingua franca, it may take a while before linguists come to realize that there is an ethnic language there at all. Which one of the following statements is correct?
  • A) Language surveys have been conducted by all nations
  • B) There is hardly any language to be discovered in the world
  • C) All the languages are either complete languages or dialects of other major languages
  • D) No new language needs to be discovered since all languages are known to the world
Answer: C
4Directions:Read the following passage carefully and answer the questions that follow by selecting the correct option from the given options, based solely on the passage. Mark your answer on the Answer Sheet accordingly.
An attempt to determine the number of languages in the world is affected by other factors. A few new languages do continue to be discovered, even these days, as unexplored regions of the world begin to be opened up. The discovery does not usually take place straight away. Often there are similarities with an already known language which make the investigators assume that what they have found is just a dialect of that language. Only after a considerable penod of contact does it transpire that the speech is so different that it has to be considered a different language. It takes a language survey to establish the facts,and there are still many countnes where such surveys are incomplete or have not even begun. The people may be known but the identity of their language may not be because many such peoples are bilingual or multilingual, and converse with outsiders in lingua franca, it may take a while before linguists come to realize that there is an ethnic language there at all. “The people may be known, but the identity of their language may not be”, means:
  • A) People are recognised as different ethnic groups but not necessarily their language
  • B) People are recognised as different ethnic groups and their language is recognised
  • C) People are not recognised as different ethnic groups, and so are their languages
  • D) Because the people are not from different ethnic groups and their language is recognised
Answer: A
5Directions:Read the following passage carefully and answer the questions that follow by selecting the correct option from the given options, based solely on the passage. Mark your answer on the Answer Sheet accordingly.
An attempt to determine the number of languages in the world is affected by other factors. A few new languages do continue to be discovered, even these days, as unexplored regions of the world begin to be opened up. The discovery does not usually take place straight away. Often there are similarities with an already known language which make the investigators assume that what they have found is just a dialect of that language. Only after a considerable penod of contact does it transpire that the speech is so different that it has to be considered a different language. It takes a language survey to establish the facts,and there are still many countnes where such surveys are incomplete or have not even begun. The people may be known but the identity of their language may not be because many such peoples are bilingual or multilingual, and converse with outsiders in lingua franca, it may take a while before linguists come to realize that there is an ethnic language there at all. Which one of the following words from the passage means “come to be known”?
  • A) transpire
  • B) lingua franca
  • C) straight
  • D) variant
Answer: A

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Official PYQ

NDA & NA (II) 2025 General Ability Test (14 September 2025)

150 Mins 600 Marks
150Questions
600Max Marks

Sample questions from NDA & NA (II) 2025 General Ability Test (14 September 2025)

1Directions: Read the following passage carefully and answer the items that follow the passage. Your answers to these items should be based solely on the passage.
Can agricultural productivity meet human needs in the long run ? Since twentieth century advances, given increasing costs, do not seem sustainable, further increases in output will not be achieved easily. Global population growth, while showing signs of slowing down, has pushed farmers and herders into areas unsuited to intensive agriculture, accelerating worldwide ecological disruptions. Reserves of arable land and fresh water have diminished alarmingly. Chemical runoffs have compounded pollution problems. Invasion of natural habitats have hastened species extinction. Desertification has been severe in the last hundred years, especially in North Africa, southern portions of Africa, Australia, northern Mexico, and the American Southwest. Tropical forests have shrunk by one-half since World War II, with agricultural pressures causing three-quarters of that loss. Government inter-vention has produced its share of catastrophes, ranging from a terrible famine in China between 1958−19611958-1961 that may have killed 30 million people and destroyed the Aral Sea. Taking everything into consideration, we may remain hopeful about humankind's agricultural prospects, but we can scarcely look forward optimistically at the end of the first quarter of the twenty-first century. Why do twentieth century advances not seem sustainable ?
  • A) They do not meet the human needs
  • B) Due to the increased cost of agricultural production
  • C) Because they are outdated for the current times
  • D) They are useful, but intensive
Answer: B
2Directions: Read the following passage carefully and answer the items that follow the passage. Your answers to these items should be based solely on the passage.
Can agricultural productivity meet human needs in the long run ? Since twentieth century advances, given increasing costs, do not seem sustainable, further increases in output will not be achieved easily. Global population growth, while showing signs of slowing down, has pushed farmers and herders into areas unsuited to intensive agriculture, accelerating worldwide ecological disruptions. Reserves of arable land and fresh water have diminished alarmingly. Chemical runoffs have compounded pollution problems. Invasion of natural habitats have hastened species extinction. Desertification has been severe in the last hundred years, especially in North Africa, southern portions of Africa, Australia, northern Mexico, and the American Southwest. Tropical forests have shrunk by one-half since World War II, with agricultural pressures causing three-quarters of that loss. Government inter-vention has produced its share of catastrophes, ranging from a terrible famine in China between 1958−19611958-1961 that may have killed 30 million people and destroyed the Aral Sea. Taking everything into consideration, we may remain hopeful about humankind's agricultural prospects, but we can scarcely look forward optimistically at the end of the first quarter of the twenty-first century. What pushes farmers into places unsuited for agriculture?
  • A) Population growth
  • B) Industrialisation
  • C) Water scarcity
  • D) Desertification
Answer: A
3Directions: Read the following passage carefully and answer the items that follow the passage. Your answers to these items should be based solely on the passage.
Can agricultural productivity meet human needs in the long run ? Since twentieth century advances, given increasing costs, do not seem sustainable, further increases in output will not be achieved easily. Global population growth, while showing signs of slowing down, has pushed farmers and herders into areas unsuited to intensive agriculture, accelerating worldwide ecological disruptions. Reserves of arable land and fresh water have diminished alarmingly. Chemical runoffs have compounded pollution problems. Invasion of natural habitats have hastened species extinction. Desertification has been severe in the last hundred years, especially in North Africa, southern portions of Africa, Australia, northern Mexico, and the American Southwest. Tropical forests have shrunk by one-half since World War II, with agricultural pressures causing three-quarters of that loss. Government inter-vention has produced its share of catastrophes, ranging from a terrible famine in China between 1958−19611958-1961 that may have killed 30 million people and destroyed the Aral Sea. Taking everything into consideration, we may remain hopeful about humankind's agricultural prospects, but we can scarcely look forward optimistically at the end of the first quarter of the twenty-first century. Which one of the following is NOT true, according to the passage, for ecological degradation ?
  • A) Global population growth
  • B) Excess use of chemicals
  • C) Desertification
  • D) World War II
Answer: D
4Directions: Read the following passage carefully and answer the items that follow the passage. Your answers to these items should be based solely on the passage.
Can agricultural productivity meet human needs in the long run ? Since twentieth century advances, given increasing costs, do not seem sustainable, further increases in output will not be achieved easily. Global population growth, while showing signs of slowing down, has pushed farmers and herders into areas unsuited to intensive agriculture, accelerating worldwide ecological disruptions. Reserves of arable land and fresh water have diminished alarmingly. Chemical runoffs have compounded pollution problems. Invasion of natural habitats have hastened species extinction. Desertification has been severe in the last hundred years, especially in North Africa, southern portions of Africa, Australia, northern Mexico, and the American Southwest. Tropical forests have shrunk by one-half since World War II, with agricultural pressures causing three-quarters of that loss. Government inter-vention has produced its share of catastrophes, ranging from a terrible famine in China between 1958−19611958-1961 that may have killed 30 million people and destroyed the Aral Sea. Taking everything into consideration, we may remain hopeful about humankind's agricultural prospects, but we can scarcely look forward optimistically at the end of the first quarter of the twenty-first century. What is the conclusion of the author in the passage about the prospects of agriculture in the world?
  • A) The author is both hopeful and sceptical of the prospects of agriculture
  • B) The author is very hopeful of the prospects of agriculture
  • C) The author is sceptical of the prospects of agriculture
  • D) The author is neither hopeful nor sceptical of the prospects of agriculture
Answer: A
5Directions: Read the following passage carefully and answer the items that follow the passage. Your answers to these items should be based solely on the passage.
Can agricultural productivity meet human needs in the long run ? Since twentieth century advances, given increasing costs, do not seem sustainable, further increases in output will not be achieved easily. Global population growth, while showing signs of slowing down, has pushed farmers and herders into areas unsuited to intensive agriculture, accelerating worldwide ecological disruptions. Reserves of arable land and fresh water have diminished alarmingly. Chemical runoffs have compounded pollution problems. Invasion of natural habitats have hastened species extinction. Desertification has been severe in the last hundred years, especially in North Africa, southern portions of Africa, Australia, northern Mexico, and the American Southwest. Tropical forests have shrunk by one-half since World War II, with agricultural pressures causing three-quarters of that loss. Government inter-vention has produced its share of catastrophes, ranging from a terrible famine in China between 1958−19611958-1961 that may have killed 30 million people and destroyed the Aral Sea. Taking everything into consideration, we may remain hopeful about humankind's agricultural prospects, but we can scarcely look forward optimistically at the end of the first quarter of the twenty-first century. Which one of the following words means 'incursion'?
  • A) invasion
  • B) intensive
  • C) severe
  • D) intervention
Answer: A

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Official PYQ

NDA & NA (I) 2025 Mathematics (13 April 2025)

150 Mins 300 Marks
120Questions
300Max Marks

Sample questions from NDA & NA (I) 2025 Mathematics (13 April 2025)

1If the sum of binomial coefficients in the expansion of (x+y)n(x + y)^n is 256, then the greatest binomial coefficient occurs in which one of the following terms?
  • A) Third
  • B) Fourth
  • C) Fifth
  • D) Ninth
Answer: C
2If k<(2+1)3<k+2k < (\sqrt{2} + 1)^3 < k + 2, where kk is a natural number, then what is the value of kk?
  • A) 11
  • B) 13
  • C) 15
  • D) 17
Answer: B
3If [ x    1    1 ][123456789][11x]=[45][\,x \;\; 1 \;\; 1\,] \begin{bmatrix} 1 & 2 & 3 \\ 4 & 5 & 6 \\ 7 & 8 & 9 \end{bmatrix} \begin{bmatrix} 1 \\ 1 \\ x \end{bmatrix} = \begin{bmatrix} 45 \end{bmatrix} then which one of the following is a value of xx?
  • A) -2
  • B) 1
  • C) 0
  • D) -1
Answer: B
4If A=[yzxzxyxyz]A = \begin{bmatrix} y & z & x \\ z & x & y \\ x & y & z \end{bmatrix} where x,y,zx, y, z are integers, is an orthogonal matrix, then what is the value of x2+y2+z2x^2 + y^2 + z^2?
  • A) 0
  • B) 1
  • C) 4
  • D) 14
Answer: B
5Consider the following in respect of a non-singular matrix MM:
  • ∣M2∣=∣M∣2|M^2| = |M|^2
  • ∣M∣=∣M−1∣|M| = |M^{-1}|
  • ∣M∣=∣MT∣|M| = |M^T|
How many of the above are correct?
  • A) None
  • B) One
  • C) Two
  • D) All three
Answer: C

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Official PYQ

NDA & NA (II) 2025 Mathematics (14 September 2025)

150 Mins 300 Marks
120Questions
300Max Marks

Sample questions from NDA & NA (II) 2025 Mathematics (14 September 2025)

1If px=qy=rzp^x = q^y = r^z, where xx, yy and zz are in GP, then consider the following statements : I. pp, qq and rr are in AP. II. ln⁡p\ln p, ln⁡q\ln q and ln⁡r\ln r are in GP. Which of the statements given above is/are correct?
  • A) I only
  • B) II only
  • C) Both I and II
  • D) Neither I nor II
Answer: B
2If AA and BB are non-empty subsets of a set, and AcA^c and BcB^c represent their complements, then which of the following is/are correct? I. A−B=Bc−AcA-B = B^c - A^c II. A−Bc=Ac−BA - B^c = A^c - B Select the answer using the code given below.
  • A) I only
  • B) II only
  • C) Both I and II
  • D) Neither I nor II
Answer: A
3Let y=x!y = x! and z=(2x)!z = (2x)!. If (z/y)=120(z / y) = 120, then what is the value of (3x)!(3x)!?
  • A) 362880
  • B) 181440
  • C) 90720
  • D) 45360
Answer: A
4Let nn be a natural number. The number of consecutive zeros at the end of the expansion of n!n! is exactly 2. How many values of nn are possible?
  • A) 3
  • B) 4
  • C) 5
  • D) More than 5
Answer: C
5If (10+log⁡10x)(10+\log_{10} x), (10+log⁡10y)(10+\log_{10} y) and (10+log⁡10z)(10+\log_{10} z) are in AP, then consider the following statements : I. The GM of xx and zz is y2y^2. II. The AM of log⁡10x\log_{10} x and log⁡10z\log_{10} z is log⁡10y\log_{10} y. Which of the statements given above is/are correct?
  • A) I only
  • B) II only
  • C) Both I and II
  • D) Neither I nor II
Answer: B

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NDA 2025 Previous Year Question Paper with Answers (PYQ) | ClassScribe