Group D — Test 84

01. Which organism is a key indicator of a healthy aquatic ecosystem?

02. Which of the following statements is/are NOT true according to the sign convention for spherical lenses? (i) All distances parallel to the principal axis are measured from the focus of the lens. (ii) All the distances measured to the right of the origin are taken as positive. (iii) Distances measured perpendicular to and above the principal axis are taken as negative. (iv) The object is always placed to the left of the lens.

03. If voltage (V) is constant, the power is directly proportional to which of the following?

04. What advantage does asexual reproduction provide in a stable environment?

05. Which of the following devices work on the principle of multiple reflections of sound waves?

06. Truck and motorbus tyres are designed to be much wider than car tyres, while cutting tools and nails are designed with sharp, small tips. This contrast in design illustrates the principle that ___________.

07. Which of the following hydrocarbons are organic compounds with elements __________?

08. What is the transfer of pollen grain from one flower to another flower called?

09. Which of the following displacement reactions are possible?

10. Can the displacement of an object be greater than the distance travelled?

11. Select the correct function of the smooth endoplasmic reticulum.

12. Which of the following correctly describes the direction of the magnetic field outside a solenoid?

13. From the given alternatives, select the correct statement related to garbage from a general household.

14. Sodium hydroxide is prepared by passing electricity through an aqueous solution of sodium chloride. The process is called:

15. The SI unit of Power is watt (W). As per the relation of work-power, one watt is equivalent to _____________.

16. Which of the following statements is/are correct regarding the female reproductive system? Statement A: The egg is carried from the ovary to the womb through a thin oviduct or fallopian tube. Statement B: The uterus opens into the vagina through the cervix.

17. Which of the following chemical equations is correctly balanced?

18. Which of the following is a compound that forms a solution when dissolved in water?

19. The distance between the optical centre of a lens and its principal focus is called ________.

20. Estimate the concentration of the solution in terms of mass by mass percentage if 50 g of common salt is dissolved in 300 g of water.

21. Which of the following processes results in the formation of two identical daughter cells?

22. Meristematic tissues are found only in a specific region. On the basis of position, which is NOT a meristematic tissue type?

23. Which process is used for the extraction of aluminium from bauxite?

24. Which of the following best illustrates Newton’s Third Law of Motion?

25. Which of the following statements best explains why all atoms of an element are represented by the same symbol?

26. Which of the following is the correct model for finding the Highest Common Factor (HCF) of two numbers?

27. The perimeter of a square is equal to the one-half of radius of a circle whose area is 39424 cm 2 . What is the area of the square? .

28. A dealer allowed a 77% discount on an article and was still able to manage a 49% profit. Find the ratio of the cost price to the listed price.

29. The average age of 24 students of a class is 17 years. If the age of the teacher is also included, the average age of the whole group becomes 18 years. The age (in years) of the teacher is:

30. For 7 innings, a cricketer has an average of 90 runs. In the 8 th inning, he scores 176 runs. His average score increased by ______. (Round off your answer to the nearest whole number.) 987

31. ₹13,403 is divided among S, B and C in such a way that if ₹40, ₹83 and ₹68 be deducted from their respective shares, they have money in the ratio 21:11:4. Find the difference between the original shares of B and C.

32. A leaves point X at 9:00 AM and reaches point Y at 1:00 PM. B leaves point Y at 9:00 AM and reaches point X at 3:00 PM. At what time will they meet?

33. If 20% of a number is added to 66, then the result is the same number. 60% of the same number is:

34. If third proportional of 75 and Z be 12, then what is the value of Z? 4959

35. A grocer marked his goods at 50% above their cost price and sold them at a discount of X%. If he gained 35% profit, then find the value of X.

36. The price of fuel decreases by 10%, 50% and 10% in three successive months, but increases by 45% in the fourth month. What is the percentage increase/decrease in the price of fuel in the fourth month as compared to its original price? (Round off your answer to two decimal places.)

37. Two pipes, P and Q, can fill a cistern in 30 hours and 40 hours, respectively. If pipe P is opened alone for 15 hours and then closed, after which pipe Q fills the cistern until it is full, then what percentage of the cistern is filled by pipe P relative to the portion filled by pipe Q?

38. A vendor buys a washing machine for ₹12,000. He sells it to a retailer at 10% profit, and the retailer sells it to a customer at 15% loss. What is the final selling price?

39. Two lines are planned such that the equations representing their paths are: (k−4)x + 2y = 6 and 2x + y = 4. If the lines are to be constructed parallel to each other, what value of k will ensure that?

40. What is the simple interest on a sum of ₹5,500, if the rate of interest for the first 4 years is 6% per annum and for the last 2 years is 5% per annum?

41. What is the volume (in cm 3 , rounded off to 1 decimal place) of a spherical shell whose internal and external diameters are 10 cm and 12 cm, respectively?

42. The measure of each interior angle of a regular pentagon is:

43. 11133  

44. the completely filled tank in 56 minutes. If both the pipes are opened together when the tank is empty, how many minutes will it take to fill one-half of the tank?

45. The number 8,33,525 is NOT divisible by:

46. The ages of Renu and Kashish are in the ratio 9 : 8. After 5 years, the ratio of their ages will be 10 : 9. Find the difference between their present ages.

47. In a test, B got 50 marks while A got 75 marks, out of 80 maximum marks. What percentage of A's marks was B's marks? (Round off the answer to two decimal places.)

48. Each of the digits in the number 56378492 is arranged in descending order from left to right. What will be the product of the digits that are second from the left and second from the right in the new number thus formed?

49. What should come in place of the question mark (?) in the given series? 71 59 46 32 17 ?

50. What should come in place of the question mark (?) in the given series? 94 130 179 243 324 ?

51. What should come in place of the question mark (?) in the given series? 2, 27, 63, 112, 176, ?

52. DRBH is related to SGQW in a certain way based on the English alphabetical order. In the same way, LZJP is related to AOYE. To which of the given options is ESCI related, following the same logic?

53. If 3 is added to each odd digit and 2 is subtracted from each even digit in the number 5341256, what will be the sum of the digits which are first from the left and second from the right in the new number thus formed?

54. Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete? YCG 87 IMQ 95 SWA 103 CGK 111 ?

55. 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 one that does not belong to that group? (Note: The odd man out is not based on the number of consonants/vowels or their position in the letter-cluster.)

56. Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only. (Left) 9 @ 3 $ 2 ! 1 6 ^ & 9 3 ! @ # 3 $ 5 + ! (Right) If all the symbols are dropped from the series, which of the following will be seventh from the right?

57. This question is based on the five, three-digit numbers given below. (Left) 593, 784, 358, 631, 296 (Right) (Example: 697 – First digit = 6, second digit = 9 and third digit = 7) Note: All operations to be done from left to right. What will be the resultant if the third digit of the highest number is added to the second digit of the lowest number?

58. Seven friends, B, C, D, T, U, V and W, are sitting in a straight line facing north. Only three people sit to the left of T. Only W sits to the right of D. Only three people sit between D and C. B sits at some place to the left of U but at some place to the right of V. How many people sit between V and U?

59. Six friends, G, H, I, Q, R and S, are sitting around a circular table facing the centre of the table. Q sits third to the left of G. G sits second to the left of R. Only S sits between G and H. I is not an immediate neighbour of Q. How many people sit between H and I when counted from the right of H?

60. In a school complex, Building A is to the south of Building B. Building E is to the east of Building B. Building D is to the west of Building A. Building C is to the south of Building E. What is the position of Building C with respect to Building B?

61. Refer to the following 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) 9 8 9 8 1 9 4 4 8 2 8 2 9 6 8 9 9 8 8 9 6 5 5 1 5 3 1 (Right) How many such even numbers are there, each of which is immediately preceded by an odd number and also immediately followed by an odd number?

62. 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: Some rabbits are fans. No fan is a car. Conclusions: (I): Some rabbits are cars. (II): Some fans are rabbits.

63. Priya starts from point A and drives 32 km towards the south. She then takes a right turn, drives 31 km, turns right and drives 43 km. She then takes a right turn and drives 54 km. She takes a final right turn, drives 11 km and stops at point P. How far (shortest distance) and towards which direction should she drive in order to reach point A again? (All turns are 90-degree turns only, unless specified.)

64. In the following triads, each group of letters is related to the subsequent one following a certain logic. Select from the given options, the one which follows the same logic. JOIN - OJIN - NOJI MALE - AMLE - EAML

65. In a certain code language, ‘SOUP’ is coded as ‘5179’ and ‘PACE’ is coded as ‘2418’. What is the code for ‘P’ in the given code language?

66. 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/subtracting/multiplying to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) (55, 11, 5) (36, 3, 12)

67. What should come in place of the question mark (?) in the given series based on the English alphabetical order? ARB YVZ WZX UDV ?

68. Seven boxes, B, D, E, P, S, T and W, are kept one over the other, but not necessarily in the same order. W is kept second from the bottom. Only three boxes are kept between W and B. P is kept at one of the positions below W. Only D is kept between B and S. E is kept at one of the positions above B. How many boxes are kept between P and E?

69. In a row of 25 people facing north, Sanjay is 7 th from the right end. If Anu sits 3 rd to the left of Sanjay, then what is Anu’s position from the left end of the line?

70. If ‘P’ stands for ‘×’, ‘Q’ stands for ‘÷’, ‘R’ stands for ‘−’ and ‘S’ stands for ‘+’, then what will come in place of question mark (?) in the following equation? 78 P 3 R 15 Q 5 S 126 Q 3 S 117 Q 9 S 125 Q 5 = ?

71. Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster 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.)

72. O, P, Q, R, W, X and Y are sitting in a straight line facing north. Only three people sit between W and Y. P sits to the immediate left of Y. No one sits to the right of Q. Only two people sit between Q and P. X sits to the immediate right of O. How many people sit between R and X?

73. In a certain code language, ‘AMIE’ is coded as ‘9432’ and ‘SAME’ is coded as ‘4279’. What is the code for ‘S’ in that language?

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

75. Select the pair which follows the same pattern as that followed by the two pairs given below. Both pairs follow the same pattern. DBD−BZB JHJ−HFH

76. 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 jacks are hammers. All jacks are keys. All jacks are drillers. Conclusions: (I) All hammers are drillers. (II) Some drillers are keys.

77. In a certain code language, A + B means ‘A is the son of B’, A - B means ‘A is the brother of B’, A x B means ‘A is the wife of B’, and A & B means ‘A is the father of B’. How is K related to V if ‘K-TxR+Z&V’?

78. Who set the record for the highest individual score in the history of the Champions Trophy innings with 165 runs?

79. Which student-led national case competition launched in October 2025 aims to address malnutrition and promotes SDG 2 (Zero Hunger) and SDG 3 (Good Health & Well- being)?

80. Before the approval of caste census in 2025, the last major attempt to gather caste-based data at the national level was made through which exercise?

81. Which important day commemorating India’s victory over Pakistan was observed on 26 July 2025?

82. When did the Government of India reconstitute the Atomic Energy Commission to include TV Somanathan and Manoj Govil?

83. In January 2025, Gujarat Chief Minister Bhupendra Patel inaugurated the Khel Mahakumbh 3.0 in which city?

84. What was the central focus of the 7 th Future Food Forum 2025 held in Dubai, UAE?

85. As of 11 June 2025, approximately how much aid did Punjab National Bank (PNB) provide under the Rakshak Plus Scheme for martyrs' families?

86. As notified in February 2025, which of the following companies introduced India’s first Air Quality Index-based parametric insurance for construction workers in the Delhi- National Capital Region?

87. Who, as a digital content creator, co-founded Monk Entertainment and was a prominent figure in 2025?

88. In September 2025, which range of Kaziranga National Park and Tiger Reserve was announced to open first for the 2025–26 tourist season?

89. Which city hosted the prestigious Michelin Guide awards in February 2025?

90. Who conferred awards to cities under the Swachh Vayu Sarvekshan Awards 2025?

91. What is the name of the new defence facility inaugurated by Rajnath Singh in New Delhi in November 2025?

92. In October 2024, which of the following state governments launched India’s first integrated state-level Cyber Command and Control Centre to serve as a comprehensive hub for handling grievances through multiple channels, including a helpline, web portal and mobile app?

93. Where was the Senior Asian Wrestling Championship 2025 held?

94. In April 2025, which international organisation acknowledged India’s achievement in lifting 171 million people out of extreme poverty?

95. Which of the following parties won 5 seats in the Bihar Assembly elections 2025?

96. Who developed the Adarsh Sports Complex in Jaipur that was inaugurated in April 2025?

97. In which union territory of India was the world’s highest rail arch bridge inaugurated by the Prime Minister of India in June 2025?