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Question 1 of 100
1. Question
If the mean and median of the distribution 170, 230, x, 215 and 235 are (210, y), find the values of x and y respectively.
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Question 2 of 100
2. Question
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Question 3 of 100
3. Question
The bar graph above shows the scores of students in a physics test. Find the percentage of the students that passed if 8 was the pass mark.
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Question 4 of 100
4. Question
Two fair dice are thrown once. Find the probability that the sum of the numbers obtained is an even number greater than 4.
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Question 5 of 100
5. Question
In the table above, what is the mid-value of the class containing the best score?
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Question 6 of 100
6. Question
Find the mean deviation of 5, 6, 7, 4 and 8.
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Question 7 of 100
7. Question
A number is picked at random from integers 1 to 30. Find the probability that it is a prime number.
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Question 8 of 100
8. Question
Given that the standard deviation of a set of data is 7.4, what is the variance of the data?
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Question 9 of 100
9. Question
Find the number of ways 5 girls can sit on a bench.
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Question 10 of 100
10. Question
Find the mean of 3.15, 4.25, 1.72, 6.0, 5.13, 2.77 and 6.24.
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Question 11 of 100
11. Question
Evaluate
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Question 12 of 100
12. Question
The gradient of the curve y=3x² – 5x + 6 when x=1 is
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Question 13 of 100
13. Question
Find the limit of
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Question 14 of 100
14. Question
The turning point of the curve y = 5 – 2x – x² occurs at
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Question 15 of 100
15. Question
If y = (x² + 2x + 4) (x – 2) find
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Question 16 of 100
16. Question
Find the value of x if
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Question 17 of 100
17. Question
Two sets L and M are given such that n(L U M) = 40, n(L) = 21 and n(M) = 29. Find n (L n M).
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Question 18 of 100
18. Question
Simplify
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Question 19 of 100
19. Question
The sides of a rectangle are (3 – √5)cm and (3 + √5)cm. Express the length of the diagonal as a surd.
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Question 20 of 100
20. Question
Subtract 11111₂ from 100001₂
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Question 21 of 100
21. Question
Given the universal set U and two subsets P and Q. Where U = {1, 2, 3, 4, 5, 6 ,7, 8, 9, 10, 11, 12} P = {x: x < 12} and Q = {x: x is an even number}. Find P n Q.
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Question 22 of 100
22. Question
Evaluate
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Question 23 of 100
23. Question
Solve the equation
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Question 24 of 100
24. Question
Sule bought 30 eggs for N450.00 and sold each egg for N12.00. What is his percentage loss?
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Question 25 of 100
25. Question
Short-sightedness can be corrected by the use of a
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Question 26 of 100
26. Question
In meiosis, the separation of daughter chromatids occur at
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Question 27 of 100
27. Question
The anti-diuretic hormone is secreted by the
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Question 28 of 100
28. Question
The excretory structure of flat worms is the
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Question 29 of 100
29. Question
In a dicot stem, the strengthening cells are the
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Question 30 of 100
30. Question
The calyx in a flower serves for
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Question 31 of 100
31. Question
Weeds can be effectively controlled by the use of
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Question 32 of 100
32. Question
Deamination in the liver involves the
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Question 33 of 100
33. Question
The two most critical factors required for the growth of plants are the
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Question 34 of 100
34. Question
Diffusion of oxygen in the mammalian lungs is enhanced by the
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Question 35 of 100
35. Question
An element that forms a major structural component of chlorophyll is
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Question 36 of 100
36. Question
Ectopic pregnancy may result from
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Question 37 of 100
37. Question
The basic unit of nucleic acids is
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Question 38 of 100
38. Question
What is the number of recognizable groups in the ABO blood system?
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Question 39 of 100
39. Question
Genetic traits that are concerned primarily with forms and structures are said to be
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Question 40 of 100
40. Question
In humans, the male is heterogamous because of the presence of
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Question 41 of 100
41. Question
Observable diversity among living organisms is referred to as
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Question 42 of 100
42. Question
A pure-breed black rabbit is crossed with a pure-breed white rabbit and all the F1 offspring have black hair. The F1 offspring are
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Question 43 of 100
43. Question
The possible blood groups of offspring that can be produced from a man in blood group O and a woman in blood group AB are
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Question 44 of 100
44. Question
The beam balance is used to measure
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Question 45 of 100
45. Question
A constant force of 6N acts for 4s on a mass of 6kg initially at rest. Calculate the final momentum.
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Question 46 of 100
46. Question
Calculate the gravitational potential at the surface of the earth.
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Question 47 of 100
47. Question
The area under a force – extension graph for a stretched wire represents the
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Question 48 of 100
48. Question
A spherical ball falling through a viscous liquid attains a terminal velocity when the
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Question 49 of 100
49. Question
Example of second – order levers are
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Question 50 of 100
50. Question
A machine that is 80% efficient requires a work input of 1.2kJ to raise a 64 kg block through a vertical distance Y. Determine the value of Y.
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Question 51 of 100
51. Question
If the limit of proportionality is not exceeded for a loaded spring, an increase in its extension results from
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Question 52 of 100
52. Question
Calculate the elastic constant of a spring extended by 1 mm when a mass of 12 kg is hung on it.
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Question 53 of 100
53. Question
A 100kg mass hung on a wire caused it to extend by 1 mm. Calculate the strain energy of the wire.
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Question 54 of 100
54. Question
The two most fundamental types of barometers are the
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Question 55 of 100
55. Question
In a hydraulic brake system, the pressure transmitted to the disc according to Pascal’s principle is
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Question 56 of 100
56. Question
A loaded hydrometer of uniform cross- sectional area of 4cm² has a mass of 10g. At what depth will it float in the water?
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Question 57 of 100
57. Question
The thermometer that will be most useful in weather forecast is
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Question 58 of 100
58. Question
For a fixed mass of gas at constant temperature, Boyle’s law explains that
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Question 59 of 100
59. Question
Calculate the amount of heat required to convert 10 kg of steam at 100° C to water at 40° C.
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Question 60 of 100
60. Question
When the saturated vapour pressure of a liquid is equal to the atmospheric pressure, the liquid will
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Question 61 of 100
61. Question
A steel needle floats on a clean water surface owing to
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Question 62 of 100
62. Question
Too much sewage in a water body causes
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Question 63 of 100
63. Question
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Question 64 of 100
64. Question
The alkali used in neutralizing acidic soils is
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Question 65 of 100
65. Question
Iron (II) Sulphide is prepared by
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Question 66 of 100
66. Question
Calcium hydroxide is added in the treatment of town water supply to
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Question 67 of 100
67. Question
A supersaturated solution is unstable when
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Question 68 of 100
68. Question
An example of a deliquescent compound is
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Question 69 of 100
69. Question
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Question 70 of 100
70. Question
The lightest gas in the universe is
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Question 71 of 100
71. Question
Aqueous solution of oxides of non-metals will be
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Question 72 of 100
72. Question
The slag formed during the extraction of iron from its ore is
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Question 73 of 100
73. Question
Ammonium tetraoxosulphate (VI) is widely used as a fertilizer because it provides
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Question 74 of 100
74. Question
In the electrolytic extraction of aluminium, the component that is continuously replaced is the
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Question 75 of 100
75. Question
The laboratory preparation of hydrochloric acid involves
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Question 76 of 100
76. Question
The essence of roasting ore is to
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Question 77 of 100
77. Question
Which of the following sulphides is soluble in water and will not precipitate out from acidified solution?
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Question 78 of 100
78. Question
Trioxocarbonate (IV) ions are detected when they react with dilute acids by the evolution of
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Question 79 of 100
79. Question
Stainless steel is composed of
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Question 80 of 100
80. Question
When a mixture of limestone and clay is heated, the product formed is
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Question 81 of 100
81. Question
The element that has the highest electronegativity value is
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Question 82 of 100
82. Question
The radioactive particle that can be stopped by aluminium foil is the
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Question 83 of 100
83. Question
In each of the questions 82 to 100, choose the option opposite in meaning to the word or phrase in italics
The drug prescribed for you is both therapeutic and prophylactic
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Question 84 of 100
84. Question
In each of the questions 82 to 100, choose the option opposite in meaning to the word or phrase in italics
Ahmed asserted that the differences between men and women were purely biological
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Question 85 of 100
85. Question
In each of the questions 82 to 100, choose the option opposite in meaning to the word or phrase in italics
His activities were considered legendary in ancient history.
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Question 86 of 100
86. Question
In each of the questions 82 to 100, choose the option opposite in meaning to the word or phrase in italics
Unlike Musa, Yakubu prefers reading the dailies
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Question 87 of 100
87. Question
In each of the questions 82 to 100, choose the option opposite in meaning to the word or phrase in italics
The boy’s accusations are vague.
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Question 88 of 100
88. Question
In each of the questions 82 to 100, choose the option opposite in meaning to the word or phrase in italics
His speech can be aptly described as vivacious.
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Question 89 of 100
89. Question
In each of the questions 82 to 100, choose the option opposite in meaning to the word or phrase in italics
The guards, always drowsy at their posts.
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Question 90 of 100
90. Question
In each of the questions 82 to 100, choose the option opposite in meaning to the word or phrase in italics.
I had always thought he was a vain wise man.
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Question 91 of 100
91. Question
In each of the questions 82 to 100, choose the option opposite in meaning to the word or phrase in italics.
Some of the dancers were very graceful.
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Question 92 of 100
92. Question
In each of the questions 82 to 100, choose the option opposite in meaning to the word or phrase in italics.
There is clear evidence of indiscriminate use of firearms.
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Question 93 of 100
93. Question
In each of the questions 82 to 100, choose the option opposite in meaning to the word or phrase in italics.
It was discovered that the iron rod was in a shallow hole.
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Question 94 of 100
94. Question
In each of the questions 82 to 100, choose the option opposite in meaning to the word or phrase in italics.
The man spoke in a disjointed manner during the ceremony.
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Question 95 of 100
95. Question
In each of the questions 82 to 100, choose the option opposite in meaning to the word or phrase in italics.
The movement is still in its embryonic stage.
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Question 96 of 100
96. Question
In each of the questions 82 to 100, choose the option opposite in meaning to the word or phrase in italics.
The decision not to attend the meeting was unilateral.
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Question 97 of 100
97. Question
In each of the questions 82 to 100, choose the option opposite in meaning to the word or phrase in italics.
This is a sanctified land and we may not tread on it.
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Question 98 of 100
98. Question
In each of the questions 98 to 100, choose the option that best completes the gap.
The threat of war ______
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Question 99 of 100
99. Question
In each of the questions 98 to 100, choose the option that best completes the gap.
A lion roars, but a turkey _____
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Question 100 of 100
100. Question
In each of the questions 98 to 100, choose the option that best completes the gap.
If you do not pay your rent, I will _____ you.
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