Group D — Test 18

01. If the thrust acting on a surface is constant but the area of contact decreases, the pressure:

02. The reactivity series, also known as the activity series, is a list of metals arranged in order of their:

03. The atomic number is defined as the total number of __________ present in the nucleus of an atom.

04. A concave lens produces an image one-third the size of the object. If the focal length is 12 cm, the object distance is:

05. If a body falls freely from a height, its potential energy is converted into __________.

06. Read the statements given below and select the correct option. Statement I: Zinc displaces copper from copper sulphate solution, but copper cannot displace zinc from zinc sulphate solution. Statement II: Zinc is more reactive than copper in the reactivity series.

07. Which of the following environmental cues determined the sex of fertilised egg in few reptiles?

08. A charge of 1.5 C is moved through a potential difference. If the work done is 30 J, what is the potential difference between the two points?

09. In the sign convention for lenses, all distances are measured from:

10. Which of the following organisms reproduce by the method of binary fission?

11. What is the atomic mass of Carbon-13 Isotope?

12. What is the name of the place where bees are kept for commercial honey production?

13. In the connective tissue, what is the relative position of the cells with respect to each other?

14. The Law of conservation of mass states that:

15. Which of the following represents an end product of anaerobic respiration in animals?

16. Which of the following methods is NOT effective to prevent the corrosion of metals?

17. What is the need for sexual reproduction in plants?

18. Which of the following cell organelles releases Adenosine Tri Phosphate (ATP) molecules needed for life activities?

19. Which of the following compounds is unsaturated?

20. A gun recoils backward when fired. The backward motion of the gun is due to:

21. The magnetic field at the centre of a current carrying circular loop is directly proportional to ______________.

22. Which of the following is a popular marine fish variety found in India?

23. A car travels 100 km at an average speed of 50 km h −1 and immediately returns along the same route covering the distance in 1 hour. What is the average speed of the car for the entire journey in m s −1 ?

24. Which of the following gases is evolved when dilute hydrochloric acid reacts with sodium hydrogencarbonate?

25. Sound waves in air are longitudinal because:

26. The length of each of the two equal sides of an isosceles triangle is 78 cm, and the length of its base is 60 cm. Find the area (in cm 2 ) of the triangle.

27. Seema bought a microwave oven for ₹7,500 and sold it for ₹8,750. Find Seema's profit percentage. (Round off your answer to two decimal places.)

28. The ratio of the ages of John and James will be 8 : 7 after 8 years. If the difference between their ages is 5 years, find the present age of James.

29. The number of prime numbers lying between 440 and 452 is:

30. Calculate the mode of the following data. (Round off to two decimal places) Marks 4-8 8-12 12-16 16-20 20-24 24-28 28-32 32-36 No. of 9 12 18 34 26 20 12 7 Stude nts

31. The sum of three numbers is 4512. If the ratio between the first and second numbers is 16 : 9 and that of between the second and third is 15 : 21, then find the difference between the first and the third number.

32. What is the simple interest on a sum of ₹3,500, if the rate of interest for the first 6 years is 8% per annum and for the last 3 years is 3% per annum?

33. A garrison of 1,200 men has provisions for 12 days. How long (in days) will the provisions last if the garrison is increased to 1,800 men? 2691

34. If an item marked at ₹758 is sold for ₹256, then what is the discount percentage? (Round off the answer to two decimal places)

35. The sides of a triangle are 102 cm, 154 cm, and 80 cm. What is the length (in cm) of its altitude corresponding to the side with a length of 154 cm?

36. R pays ₹20 with ₹2 and ₹5 coins. If at least one coin of each denomination is used in paying the amount, then the number of ₹2 coins used is _____.

37. The unit prices of lemon chocolate and strawberry chocolate are in the ratio 28 : 26, and a family consumes them in the ratio 15 : 14 by quantity. Find the ratio of expenditure on strawberry chocolate to that on lemon chocolate.

38. The marked price of an item is set at 51% above its cost price. If the merchant sells the item at 8% below the marked price, his profit percentage (rounded off to 1 decimal place) is:

39. A class of 43 students took a Physics test. 10 students had an average score of 99. The other students had an average score of 55. What is the average score (rounded off to one decimal place) of the whole class?

40. A train overtakes two persons walking along a railway track. The first one walks at 5.4 km/hr. The other one walks at 18 km/hr. The train needs 30 and 44 seconds, respectively, to overtake them. What is the speed of the train, if both the persons are walking in the same direction as the train?

41. The vertices of a quadrilateral are A(2,3), B(5,7), C(10,6), and D(7,2). Find the area of the quadrilateral ABCD.

42. One pipe can fill a tank in 6 minutes while another pipe can empty the completely filled tank in 12 minutes. If both the pipes are opened together when the tank is empty, how many minutes will it take to fill one-fourth of the tank?

43. The income of Raman is ₹25,000. He saves 25.5% of his income. If his income increases by 20% and expenditure increases by 40%, then his savings will:

44. If X − Y = 20 and XY = 12, then find the value of X 2 + Y 2 .

45. 2 men or 9 women can do a job in 9 days. 2 men work for 5 days and leave. The number of women required to complete the remaining work in 9 days is: 3889

46. A train, 1195 m-long, is running at a speed of 23m/s. If it takes 72 seconds to cross a tunnel, then find the length of the tunnel. 3717

47. Refer to the number and symbol 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) £ $ 9 3 4 9 7 £ % & # 7 3 1 8 7 5 * @ 4 £ $ (Right) How many such numbers are there each of which is immediately preceded by a symbol and also immediately followed by a symbol?

48. In a certain code language, ‘she play guiter’ is coded as ‘so tn yw’ and ‘play chess daily’ is coded as ‘nj bg so’. How is ‘play’ coded in the given language?

49. 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.)

50. 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 necks are faces. Some necks are arms. Conclusions: (I): All arms are necks. (II): Some faces are arms.

51. Seven boxes M, N, O, P, Q, R, and S are kept one over the other but not necessarily in the same order. Only three boxes are kept above S. Only one box is kept between R and S. Only three boxes are kept between R and Q. Q is kept at some place above S. N is kept immediately below Q. M is kept at one of the places above O. P is not kept immediately above or below R. Which box is kept at the lowermost position?

52. Himesh starts from Point A and drives 4 km towards the south. He then takes a left turn, drives 7 km, turns right and drives 6 km. He then takes a right turn and drives 7 km. He takes a final right turn, drives 3 km and stops at Point P. How far (shortest distance) and towards which direction should he drive in order to reach Point A again? (All turns are 90 degrees turns only, unless specified.)

53. What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘–’ are interchanged and ‘×’ and ‘÷’ are interchanged? 48 + 36 ÷ 36 × 24 – 50 = ?

54. Mr. Z starts from Point A and drives 14 km towards the North. He then takes a left turn, drives 19 km, then turns left and drives 30 km. He then takes a left turn and drives 21 km. He takes a final left turn, drives 16 km, and stops at Point P. How far (shortest distance) and towards which direction should he drive in order to reach Point A again? (All turns are 90-degree turns only, unless specified.)

55. What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged? 21 ÷ 5 – 25 + 180 × 3 = ? 3199

56. In a certain code language, ‘OVAL’ is coded as ‘2635’ and ‘LAVE’ is coded as ‘5762’. What is the code for ‘E’ in the given code language? 1638

57. Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete? OZJ81, QWN78, STR75, ?

58. Refer to the following 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 1 9 1 1 5 4 2 2 9 4 3 9 3 7 1 1 6 7 3 2 2 2 7 4 6 7 (Right) How many such odd numbers are there each of which is immediately preceded by an even number and also immediately followed by an even number?

59. What should come in place of the question mark (?) in the given series? 153 135 117 99 81 ?

60. Refer to the following number, symbol series and answer the question. Counting to be done from left to right only. All numbers are single-digit numbers. (Left) 1 # 2 3 Ω 9 % 4 7 8 & * £ 5 + @ 6 $ (Right) How many such numbers are there, each of which is immediately preceded by a symbol and also immediately followed by another number?

61. Which of the following letter-number clusters will replace the question mark (?) in the given series to make it logically complete? HCK 29, KHH 42, NME 55, QRB 68, ?

62. What should come in place of the question mark (?) in the given series? 24 35 47 60 ? 89 3818

63. QN 3 is related to RJ −12 in a certain way. In the same way, HE 7 is related to IA −8. To which of the given options is LI 11 related, following the same logic?

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 letter-cluster pair 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. John ranked 21 st from the bottom and 33 rd from the top in his class. How many students are there in his class?

66. 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 that follows the same logic. CAFE - CEAF - ECFA ABLY - AYBL - YALB

67. Refer to the following series and answer the question that follows (all numbers are single digit numbers only). Counting to be done from left to right only. (Left) 7 1 8 3 3 1 5 4 8 5 1 4 4 9 5 9 6 8 7 3 5 3 6 6 9 (Right) How many such digits are there each of which is immediately preceded by a perfect square and also immediately followed by a perfect square? (Note: 1 is also a perfect square)

68. F, G, H, I, M, N and O are sitting around a circular table, facing the centre of the table. Only two people sit between F and G, when counted from the right of F. Only two people sit between G and M, when counted from right of G. Only three people sit between F and N, when counted from the right of F. H sits to the immediate left of I. Who sits third to the left of O?

69. 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.) (13, 39, 3) (15, 75, 5)

70. 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. TIPS - PTIS - SPIT LOST - SLOT - TSOL

71. Seven people, A, B, C, D, E, F, and G, are sitting in a row, facing the north. Only five people sit between D and F. G sits to the immediate left of F. Only one person sits between G and A. B sits at some place to the left of C but at some place to the right of E. How many people sit to the right of A?

72. In a certain code language, ‘A ? B’ means ‘A is the daughter of B’, ‘A = B’ means ‘A is the wife of B’, ‘A @ B’ means ‘A is the mother of B’ and ‘A √ B’ means ‘A is the father of B’. How is C related to L if ‘C @ D ? E √ F = L’?

73. A, B, C, R, S, T and U are sitting around a circular table facing the centre of the table. Only one person sits between B and T when counted from the right of B. Only one person sits between T and R when counted from the left of R. Only one person sits between B and U when counted from the right of U. Only two people sit between C and R when counted from the left of R. Only one person sits between A and U when counted from the right of A. Who sits third to the right of S ?

74. If each of the digits in the number 47315628 is arranged in ascending order from left to right, then the position(s) of how many digits will remain unchanged as compared to that in the original number?

75. What should come in place of the question mark (?) in the given series? 20 27 13 34 ? 41 3814

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 conclusion(s) logically follow(s) from the statements. Statements: Some balls are hens. All vans are hens. Conclusion (I) : Some balls are vans. Conclusion (II) : All hens are vans.

77. Loan-to-Value (LTV) ratio on gold loans from 75% to 85%?

78. The Constitution (Scheduled Tribes) Order (Third Amendment) Bill, 2022, seeks to amend the Constitution (Scheduled Tribes) Order, 1950, with respect to its application to _____________.

79. As per the India Justice Report, 2025, (which presents a comprehensive assessment of the capacity and performance of Indian states in delivering justice) which of the following states ranked top among small states?

80. In May 2025, which organization released the Global Report on Food Crises, highlighting rising hunger due to conflict and climate extremes?

81. As per the survey conducted by the Yale Program on Climate Change Communication and CVoter from 5 December 2024 to 18 February 2025, what percentage of Indians reported experiencing severe heatwaves in the past 12 months?

82. As notified in April 2025, how many new species of Sericinae scarab beetles from the biodiversity-rich regions of India were discovered by Zoological Survey of India in collaboration with Germany’s Museum A. Koenig?

83. The September 2025 guidelines on Anganwadi–School co-location emphasise which key component of child development?

84. Which of the following teams set the 4x100m relay record at the National Relay Carnival 2025?

85. According to the January 2025 draft rules of the Digital Personal Data Protection Rules (DPDP) Act, children under what age require parental consent to join social media platforms?

86. Which of the following countries hosted the 2025 ISSF World Cup in Rifle/Pistol shooting?

87. As of June 2025, who announced the decision to host Khelo India Northeast Games every year?

88. Which year was declared as the ‘Year of Reforms’ by the Ministry of Defence of the Government of India?

89. Which of the following bodies implemented the 'UPI for International Transactions' pilot in 2025?

90. As per the announcement made in May 2025, India is set to conduct its first-ever biological experiments aboard the International Space Station (ISS) to study the sustainability of Human life in Space, as an important initiative under the _______.

91. The National Conference on ‘Environment – 2025’, inaugurated by President Droupadi Murmu, was held in which city?

92. Which film featuring caste and police brutality themes was submitted as India’s Oscar entry but banned domestically by the Central Board of Film Certification?

93. In May 2025, iPhone maker Foxconn announced to invest how much amount in India?

94. The C40 World Mayors Summit of 3-5 November 2025 is scheduled for which city?

95. Who did Praggnanandhaa defeat to reach the No.1 spot among Indian chess players?

96. What was the purpose of Operation Brahma launched by India in March 2025?