Group D — Test 83

01. Water harvesting is important because it:

02. A convex mirror always forms an image that is ________.

03. Which reaction best supports the Law of Conservation of Mass?

04. The resistance of a wire is 1 Ω . If it is cut into two equal parts, the resistance of each part will be:

05. When CO 2 reacts with calcium hydroxide, it gives calcium carbonate and water. Which property of CO 2 is seen in this reaction?

06. Why does a galvanised iron article remain protected from rusting even if the zinc coating is scratched?

07. Which enzyme present in saliva helps break down starch?

08. Which of the following is a result of the genetic variation introduced by sexual reproduction?

09. At what pH does tooth decay begin to occur in the human mouth?

10. Select the option that is true regarding the following two statements labelled Assertion (A) and Reason (R). Assertion (A): Vegetative propagation helps grow plants that do not produce seeds. Reason (R): It uses flowers to grow new plants.

11. According to Ohm’s law, the potential difference across a conductor is:

12. A particle accelerates uniformly at 2 m/s 2 . Its velocity changes from 5 m/s to 15 m/s. How long does this take?

13. Which of the following is NOT a property of ionic compounds?

14. Prokaryotic cells differ from eukaryotic cells in having which of the following?

15. Plastids have their own __________ and __________, similar to mitochondria.

16. Which of the following statements suits best for the role of chemical methods of birth control in family planning?

17. Which of the following properties of 'suspension' is INCORRECT?

18. What is the correct formula for calculating pressure, where thrust is the force applied and area is the surface it acts on?

19. The amount of solute dissolved in a particular solvent is defined in terms of:

20. Food web consists of different types of _________.

21. An object has a mass of 11 kg and is placed at a height above the ground. If its potential energy is 440 J and g = 10 m/s 2 , what is the height?

22. Which of the following situations clearly illustrates Newton’s third law, where action and reaction forces act on two different objects and are equal and opposite?

23. What happens to the sound when the source vibrates faster?

24. The absolute refractive index of a material is 4/3. If the speed of light in air is 3 x 10 8 m/s, then what will be the speed of light in this medium?

25. Rahul covers a distance of 225 km in 15 hours. How many hours will he take to cover 40% less distance if he drives 20% faster than his original speed? 3164

26. If P : 17 :: 42 : 6, then find the value of P. 4875

27. X, Y and Z together can complete a piece of work in 8 days, while X alone can complete it in 24 days and Y alone can complete it in 36 days. Find in how many days Z alone can complete the work?

28. In △ ABC, BD ⟂ AC at D and ∠ DBC = 66°. E is a point on BC such that ∠ CAE = 35°. What is the measure of ∠ AEB?

29. The mode of the observations 22, 21, 22, 20, 33, 34, 22, 29, 29, 31, 23, 23, 28, 32, 22, 26 and 27 is:

30. Find the simple interest (in ₹) on ₹4,000 at 6% per annum rate of interest for the period from 22 February 2024 to 23 April 2024. 16

31. The volume of a sphere is numerically equal to its surface area. Find its radius (in units).

32. In a town with 75,000 voters, 95% cast their votes, all of which were valid. There were three candidates: A, B, and C. Candidate A received 40% of the valid votes, while candidate B received 12% fewer votes than A. What percentage of the valid votes did candidate C receive?

33. A computer printed 1,76,400 lines in a given day. If the printer was in operation for 6 hours during the day, how many lines did it print per minute?

34. The average of first 6 odd natural numbers, is:

35. The value of the expression is _____.

36.  

37. Find the effective price percentage of the marked price after three consecutive discounts of 11%, 18% and 20% (rounded off to two decimal places).

38. A person saves 10% of his income. If his expenditure is ₹360, then his income (in ₹) is:

39. A vertical stick 15 m long casts a shadow 5 m long on the ground. At the same time, a tower casts a shadow of 46.5 m long on the ground. The height of the tower is:

40. During the festive season, one large laddoo having radius 32 cm is made as prashad. After pooja, it is decided to make small laddoos from one large laddoo so as to distribute to the devotees. How many laddoos of radius 2 cm can be made?

41. Two trains are running in opposite directions at the same speed. If the length of each train is 444 m and they cross each other in 37 seconds, then what is the speed of each train?

42. The difference between the present ages of two sisters is 3 years. After 2 years, the elder sister will be twice as old as the younger sister was 2 years ago. Find the sum of their ages after 8 years from now.

43. If 4 lines of a print, in a column of a book, contain 36 words, how many words will a column of 50 lines contain?

44. A, B and C can do a piece of work in 3, 9 and 18 days, respectively. How long (in days) will they take to do twice the same work, working together?

45. The ratio of three numbers is 12 : 21 : 5. If 50 percent of the first number is 78, then what would be 50 percent of the absolute difference of third and second number? 5000

46. A dealer marks his goods at 25% above the cost price and allows a discount of 28% on the marked price. What is his gain or loss percentage?

47. Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: All bags are shoes. All bags are caps. All bags are laptops. Conclusions: (I): All shoes are laptops. (II): Some laptops are caps.

48. Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete? CYB 48 DZC 53 EAD 58 FBE 63 ?

49. If ‘A’ stands for ‘÷’, ‘B’ stands for ‘×’, ‘C’ stands for ‘+’ and ‘D’ stands for ‘−’, then what will come in place of the question mark (?) in the following equation? 12 C 52 A 13 B 7 D 31 = ?

50. JTUB is related to HRSZ in a certain way based on the English alphabetical order. In the same way, MXNP is related to KVLN. To which of the given options is LRYH related, following the same logic?

51. In a certain code language, ‘AUTO’ is coded as ‘2683’ and ‘TOUR’ is coded as ‘8136’. What is the code for ‘R’ in that language?

52. Refer to the given number, symbol series and answer the question that follows. Counting to be done from left to right only. (Left) 4 8 @ 3 € 8 & 6 * 6 © 6 $ £ & 5 7 $ $ # 8 $ (Right) How many such numbers are there, each of which is immediately preceded by a symbol and also immediately followed by a symbol?

53. Each of the digits in the number 21786539 is arranged in ascending order from left to right. The position(s) of how many digits will remain unchanged as compared to that in the original number?

54. Select the pair which follows the same pattern as that followed by the two pairs given below. Both pairs follow the same pattern. PSQ−MPN GJH−DGE

55. Read the given statement(s) and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: Some Hydrogens are Oxygens. All Oxygens are Nitrogens. All Nitrogens are Carbons. Conclusion I: All Oxygens are Carbons. Conclusion II: Some Nitrogens are Hydrogens.

56. If ‘A’ stands for ‘÷’, ‘B’ stands for ‘×’, ‘C’ stands for ‘+’ and ‘D’ stands for ‘−’, what will come in place of the question mark (?) in the following equation? (84 A 12) B 5 C 13 B 2 D 11 B 5 C 28 = ?

57. Select the set in which the numbers are related in the same way as are the numbers of the following sets. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – Operations on 13 such as adding to/subtracting from/multiplying with 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) (5, 14, 25) (4, 13, 24)

58. What should come in place of the question mark (?) in the given series? 6 8 ? 18 26 36 1107

59. Which of the following letter-clusters will replace the question mark (?) in the given series to make it logically complete? KDG, MFI, OHK, QJM, ?

60. In a certain code language, ‘go there now’ is coded as ‘lb gt de’ and ‘go to school’ is coded as ‘kj ft de’. How is ‘go’ coded in the given language? (All codes are two-letter codes)

61. All 54 people are standing in a row facing north. Mr. Akte is 8 th from the right end while Mr. Memi is 21 st from the left end. How many people are there between Mr. Akte and Mr. Memi?

62. Refer to the given number series and answer the question that follows (all numbers are single-digit numbers only). Counting to be done from left to right only. (Left) 4 2 1 5 7 9 8 5 3 6 2 1 5 7 3 7 8 4 3 6 9 7 4 5 2 4 1 (Right) How many such even digits are there, each of which is immediately preceded by an even digit and also immediately followed by an odd digit?

63. Kartik starts from Point A and drives 9 km towards east. He then takes a right turn, drives 5 km, turns right and drives 11 km. He then takes a right turn and drives 12 km. He takes a final right turn, drives 2 km and stops at Point P. How far (shortest distance) and towards which direction should he drive in order to reach Point A again? (Note: All turns are 90° turns only unless specified.)

64. Based on the English alphabetical order, three of the following four letter-cluster pairs are alike in a certain way and thus form a group. Which is the letter-cluster pair that DOES NOT belong to that group? (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)

65. Five people, A, B, C, D and E, are sitting in a row, facing towards the north. Only two people are sitting between A and D. B is sitting at the third position from the extreme left of the row. B is sitting to the immediate right of A. B is sitting to the immediate left of E. Exactly how many people are sitting between E and A?

66. Vikas starts from Point Y and drives 81 km towards the south. He then takes a right and drives 77 km. He then takes a right turn and drives 27 km. He takes a right turn, drives 35 km. He then turns right, drives 39 km, turns left and drives 42 km to stop at Point Z. How far (shortest distance) and towards which direction should he drive in order to reach Point Y again? (All turns are 90-degree turns only unless specified.)

67. What should come in place of the question mark (?) in the given series? 17, 22, 32, 47, 67, ?

68. All 46 people are standing in a row facing north. Z is 12 th from the right end while G is 9 th from the left end. How many people are there between Z and G?

69. Refer to the following letter series and answer the question. (Counting to be done from left to right only.) (Left) D M X A G N R L W O T P Y E F Q K Z J V U H (Right) How many such consonants are there, each of which is immediately preceded by a consonant and also immediately followed by a vowel?

70. In a certain code language, P + Q means ‘P is the husband of Q’, P # Q means ‘P is the brother of Q’, P & Q means ‘P is the mother of Q’ and P % Q means ‘P is the sister of Q’. How is F related to E if ‘F # N + O & V % E’?

71. This question is based on the five, three-digit numbers given below. (Left) 654 842 684 714 385 (Right) (Example: 697 – First digit = 6, second digit = 9 and third digit = 7) (NOTE: All operations to be done from left to right.) If all the numbers are arranged in ascending order, then the position of how many numbers will remain unchanged?

72. What should come in place of the question mark (?) in the given series? 1 5 11 19 ? 41

73. YEVA is related to JPGL in a certain way based on the English alphabetical order. In the same way, QWNS is related to BHYD. To which of the given options is XDUZ related, following the same logic?

74. A, B, C, D, E and F are sitting around a circular table, facing the centre. D sits third to the right of C. A sits second to the left of C. E sits second to the right of F. B sits to the immediate right of E. How many people sit between A and F, when counted from the left of A?

75. Based on the English alphabetical order, three of the following four are alike in a certain way and thus form a group. Which is the one that does not belong to that group? (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)

76. Seven friends, L, M, N, O, Q, R and S, are sitting in a straight line facing north. No one sits to the right of S. S sits immediately to the right of Q. Only three people sit between S and N. R sits third to the left of M. O sits to the immediate right of M. How many people sit between L and Q?

77. Which milestone did Tata Lockheed Martin Aerostructures (TLMAL), a joint venture of Tata Advanced Systems (TASL) and Lockheed Martin achieve in India’s defence manufacturing in December 2025?

78. Where were the Special Olympics World Winter Games 2025 held?

79. What was the theme of the National Disaster Management Authority (NDMA)’s 21 st Formation Day, observed on 26 September 2025?

80. As of July 2025, how many Indian cricketers have been nominated for a Laureus World Sports Award, including Rishabh Pant?

81. 'Why the Constitution Matters' is a book written by ___________________.

82. In which track event did Animesh Kujur break his own national record?

83. Which of the following villages in the Uttarkashi district of Uttarakhand was devastated by a flash flood caused by a cloudburst on 5 August 2025?

84. In October 2025, what was the RBI Monetary Policy Committee' s decision on the policy repo rate and stance?

85. Which summit involving regional leaders from East and Southeast Asia was held in Kuala Lumpur, Malaysia, on 26–27 May 2025?

86. Where will India’s first electronic waste (e‑waste) eco‑park be established by the Delhi government as a model for sustainable urban development?

87. What type of weapon is DRDO planning to test under the DURGA-2 project?

88. What action did the Securities and Exchange Board of India (SEBI) take on 22 August 2025 regarding social-media financial schemes?

89. In September 2025, which female cheetah was released in Gandhi Sagar Wildlife Sanctuary to strengthen breeding efforts?

90. The Fit India Movement's 'Sundays on Cycle' event, aimed at promoting a healthy lifestyle, was held in February 2025. At which iconic Mumbai landmark did it take place?

91. The Defence Research and Development Organisation (DRDO) flight-tested the Integrated Air Defence Weapon System (IADWS) in August 2025. Which of the following DRDO laboratories developed the high-power laser-based Directed Energy Weapon (DEW) for the Integrated Air Defence Weapon System (IADWS)?

92. According to the World Bank's Poverty and Equity Brief Report 2025, India’s extreme poverty rate fell from 16.2% (in 2011-12) to what percentage in 2022-23?

93. On 11 March 2025, Finance Minister Nirmala Sitharaman announced a corpus of how much for a contingency fund in Manipur during the discussion on the ‘Manipur Appropriation Bill, 2025’ and ‘The Manipur Appropriation (Vote on Account) Bill, 2025’ in the Lok Sabha?

94. Which among the following states was ranked first in the NITI Aayog’s Fiscal Health Index (FHI) 2025 for the financial year 2022-23?

95. Which organisation confirmed strong economic growth in India’s industrial and services sectors in May 2025, despite unemployment challenges?

96. In June 2025, which of the following organizations published the Global Economic Prospects (GEP) report, a flagship publication providing analysis of global economic trends, forecasts, and risks?