Group D — Test 19

01. Which of the following statements about oxidation and reduction are correct? I. A substance is said to be oxidised if it gains oxygen or loses hydrogen. II. A substance is reduced if it loses oxygen or gains hydrogen. III. In every redox reaction, both oxidation and reduction occur simultaneously.

02. What happens to the inter-particle space when a solid melts into a liquid?

03. Why is the gravitational force considered a weak force in everyday terrestrial interactions, such as between you and a friend sitting nearby?

04. What is the primary function of epithelial tissue?

05. Which of the following is the fluid content inside the plasma membrane?

06. What happens when an unbalanced force acts on an object?

07. Which of the following is an example of natural ecosystem?

08. If 0.2 A current flows through a wire when the potential difference across it is 2 V, what is the resistance of the wire?

09. What is the minimum time gap needed between the original sound and its echo for us to hear a clear echo?

10. Which of the following is a psychological change associated with sexual maturity?

11. Which of the following statements is correct about reproduction in plants?

12. The anion formed by which of the following non-metals reacts with Ca2+ ion to form a stable ionic compound?

13. In a concave mirror, a ray of light directed towards the principal focus after reflection:

14. Which of the following statements is/are correct?

15. Which of the following products is formed on complete combustion of hydrocarbons?

16. A compass needle placed near a current-carrying conductor shows deflection because:

17. Which of the following does NOT involve oxidation reaction?

18. If a constant force of 10 N moves an object 5 m in the same direction as the force, the work done is:

19. Through the phenomenon of biological magnification, which of the following has the maximum concentration of pesticides in them?

20. Which of the following is a T-shaped intra-uterine contraceptive device that offers long- term (multi-year) birth control?

21. (CH ₃ ) ₃ -C-CH ₃ represents the structural formula of which of the following organic compounds?

22. Select the correct example of a crystalline solid.

23. Which of the following statements is true about mass?

24. The wavering of objects seen through a turbulent hot air stream is an example of:

25. Which of the following statements about nervous tissue is correct?

26. Which of the following numbers is divisible by 105?

27. Ajay and Shanu together have ₹1,050. If ₹350 is taken from Ajay, he will have the same amount that Shanu had initially. Find the initial ratio of the amounts with Ajay and Shanu.

28. A regular hexagonal tile has a side length of 6 cm. The tile is divided into 6 equilateral triangles by drawing lines from the centre to each vertex. If 3 alternate triangles are painted blue, what is the total blue painted area (rounded off to two decimal places)?

29. A product was sold for ₹980, resulting in a loss of ₹150. To earn a profit of ₹270 instead, what should be its revised selling price?

30. DMART is offering 'Buy 30, get 21 free' on grocery items. What is the net percentage discount being offered by the DMART? (Corrected up to two decimal places)

31. In quadrilateral PQRS, the bisectors of ∠ R and ∠ S meet at the point T (inside the quadrilateral) and ∠ STR = 36°. If the ratio of ∠ P to ∠ Q is 2 : 7, then what is the difference between the measures of ∠ Q and ∠ P?

32. The sides of a triangle are 45 cm, 28 cm, and 53 cm. What is its area (in cm 2 )?

33. If 20% of a number is added to 84, then the result is the same number. 80% of the same number is:

34. 3173  

35. The population of a village increased by 5% in 2023 and was expected to increase again by 6% in 2024. Find the overall percentage increase in the population of the village over the two years.

36. One pipe can fill a tank in 9 minutes while another pipe can empty the completely filled tank in 18 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?

37. What is the average speed of a bike, which covers half the distance with a speed of 42 km/hr and the other half with a speed of 84 km/hr?

38. The sum of three numbers is 2316. If the ratio between the first and second numbers is 16 : 10 and that of between second and third is 6 : 18, then find the difference between the first and the third number.

39. The arithmetic mean of the observations 39, 91, 32, 73, 84, 18, 83, 83 and 28 is:

40. 6777  

41. Nick, Kevin, and Joe can finish a certain piece of work in 10, 47, and 24 days, respectively. All three of them started the work together. Nick left the work after 2 days and Kevin left just 5 days before the work was completed. Find the total number of days taken for the work to be completed.

42. The sum of ages of three brothers is 52 years. The eldest is 4 years older than the middle brother, and the middle brother is 6 years older than the youngest. Find the age of the eldest brother.

43. A sum of money was invested at simple interest at a certain rate for 10 years. Had it been invested at a 6% per annum higher rate, it would have fetched ₹5,700 more. Find the principal.

44. Two numbers add up to 98. If twice the smaller number minus the bigger number equals 28, find the smaller number.

45. Which of the following numbers is divisible by 6?

46. Isha buys a gold ring for her mother. The gold ring is marked at ₹50,000, and two successive discounts of 30% and R%, respectively, are given. After getting the two successive discounts, she paid ₹14,000. Find the value of R.

47. The cost of a washing machine is 25% less than the cost of a TV. If the cost of the washing machine increases by 66% and that of the TV decreases by 57%, then what is the percentage change in the total cost of 7 washing machines and 5 TVs?

48. What should come in place of the question mark (?) in the given series? 1 1 2 6 24 120 ?

49. What should come in place of the question mark (?) in the given series? 87 75 63 51 39 ?

50. In a certain code language, ‘desk round mom’ is coded as 'md ei wx' and ‘mom wheat bell’ is coded as ‘um ac ei’. How is ‘mom’ coded in the given language?

51. Six cadets, Ram, Shyam, Ravi, John, Noel and Rohan, are standing around a round flag- hoisting pole, facing towards the centre. Noel is the immediate neighbour of Ram and Rohan. John is third to the left of Ram. Ravi and Shyam are sitting next to each other. John is a neighbour of both Shyam and Rohan. Who amongst the following is sitting between Ram and Shyam, when counted from the left of Shyam?

52. In a certain code language, P # Q means ‘P is the father of Q’, P % Q means ‘P is the sister of Q’, P @ Q means ‘P is the wife of Q’ and P & Q means ‘P is the brother of Q’. Based on the above, how is G related to J if ‘G @ D # B @ K # J’?

53. Juhi starts from point A and drives 57 km towards the North. She then takes a right turn, drives 58 km, turns right and drives 61 km. She then takes a right turn and drives 60 km. She takes a final right turn, drives 4 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 degrees turns only unless specified.)

54. What should come in place of the question mark (?) in the given series? 1 9 25 ? 81

55. 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 ostriches are eagles. No ostrich is a peacock. Conclusion (I): No eagle is a peacock. Conclusion (II): Some peacocks are ostriches.

56. Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete? 7P25 10Q20 ? 16S10 19T5

57. RBUL is related to VXYH in a certain way based on the English alphabetical order. In the same way, ZTCD is related to DPGZ. To which of the given options is HLKV related, following the same logic?

58. 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.)

59. In a certain code language, ‘soup hat honey’ is coded as ‘vc iw dp’ and ‘honey wall yak’ is coded as ‘ar hw iw’. How is ‘honey’ coded in the given language? 17254

60. If ‘E’ stands for ‘+’, ‘F’ stands for ‘-’, ‘G’ stands for ‘×’ and ‘H’ stands for ‘÷’, what will come in place of question mark ‘?’ in the following equation? 96 H 12 G 2 E 15 F 9 = ?

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

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

63. This question is based on the five, three-digit numbers given below. (Left) 582 128 563 183 592 (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? 2432

64. Seven boxes B, C, D, I, J, K, and L are kept one over the other but not necessarily in the same order. Only I is kept above L. Only three boxes are kept between I and B. Only K is kept below C. D is kept immediately above B. How many boxes are kept between J and K?

65. If + means −, − means ×, × means ÷ and ÷ means +, then what will come in place of the question mark (?) in the following equation? 131 − 7 ÷ 32 + 362 × 2 = ?

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 its constituent digits. E.g. 13 – Operations on 13 such as adding / subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) (13, 39, 3) (15, 75, 5) 548

67. 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 figs are bananas. All cups are bananas. Conclusions: (I) Some figs are cups. (II) All cups are figs.

68. What should come in place of the question mark (?) in the given series based on the English alphabetical order? CMN KUV SCD AKL ?

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

70. TP 16 is related to LH 8 in a certain way. In the same way, PL 18 is related to HD 9. To which of the given options is LH 12 related, following the same logic?

71. DI 2 is related to UZ 8 in a certain way. In the same way, MR 4 is related to DI 64. To which of the given options is OT 3 related, following the same logic?

72. Seven boxes B, C, D, I, J, K and L are kept one over the other but not necessarily in the same order. Only two boxes are kept between J and B. Only K is kept above I. Only two boxes are kept between K and J. C is kept at some place below L but at some place above

73. A, B, C, R, S, T and U are sitting around a circular table facing the centre of the table. A sits third to the left of R. B sits second to the left of C. R is the immediate neighbour of both U and B. T is not an immediate neighbour of A. How many people sit between S and B when counted from the right of S?

74. 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.)

75. a left turn, drives 8 km, turns left and drives 2 km. She then takes a left turn and drives 4 km. She takes a final right turn, drives 4 km and stops at Point P. How far (shortest distance) and towards which direction should she drive in order to reach Point A again? (Note: All turns are 90° turns only unless specified.)

76. Each of the digits in the number 2365987 is arranged in descending order from right to left. Calculate the sum of the digits whose position(s) remain(s) unchanged as compared to that in the original number.

77. Refer to the following series and answer the question (all numbers are single digit numbers only). Counting to be done from left to right only. (Left) 5 7 9 4 2 1 4 7 9 3 2 6 8 5 4 1 9 5 4 3 2 (Right) How many such even digits are there each of which is immediately preceded by an even digit and also immediately followed by an even digit? 4105

78. Which agency launched Bharatpol in January 2025, to streamline real-time Interpol communication for Indian agencies?

79. Which Indian state released a draft child protection policy on 1 April 2025 inviting public feedback on implementation across institutions?

80. Which of the following insurance companies launched the ‘SheTARA’ health campaign on International Women’s Day, 2025?

81. How many years had Narendra Modi completed as Prime Minister of India by May 2025?

82. Which country hosted the G20 Foreign Ministers' Meeting in March 2025?

83. What was India’s position in the 2025 Climate Change Performance Index (CCPI)?

84. Which Indian cricketer was among the recipients of the Padma Shri in 2025?

85. The Indian who won the United Nations Sasakawa Award 2025 for Disaster Risk Reduction is popularly known as?

86. As per the Govt. of India's report in July 2025, which of the following states processed the highest quantity of e-waste during 2024-25?

87. Which technology was used in 2025 to create the latest lab-grown human lung microtissues?

88. In July 2025, who inaugurated the 'Mahila Aarogyam Kaksh' to promote women’s health at Shastri Bhawan?

89. The IRIS chip developed by Indian Institute of Technology (IIT) Madras and ISRO is based on which indigenous microprocessor architecture?

90. The Indian Prime Minister launched a scheme with a budgetary allocation of ₹11,440 crore for the period 2025–26 to 2030–31 on 11 October 2025, named ______.

91. Who won the Men’s Singles title at the 2025 Australian Open?

92. Which of the following institutions launched WhatsApp Channel for verified financial updates in April 2025?

93. Which city in India hosted the inaugural ASEAN–India Cruise Dialogue on 1 July 2025?

94. Which Indian gymnast made history at the FIG Apparatus World Cup 2025 by winning a bronze medal?

95. The 2025 World Judo Championships, held in June 2025, took place at which location?

96. In May 2025, the United Nations Development Programme (UNDP) released the Human Development Index (HDI), 2024, report. What was India's rank in the HDI list?

97. Which country was elected the President of the African‑Asian Rural Development Organization (AARDO) for 2025–27?