JAMB CBT PRACTICE TEST

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BIOLOGY LESSON NOTE ON HUMAN KIDNEY

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Lesson Note on the Human Kidney Topic: The Human Kidney Duration: 40 minutes Specific Objectives: By the end of the lesson, students should be able to: Define the kidney and state its location in the human body. Identify and describe the structure and functions of the kidney. Explain the processes involved in urine formation (filtration, reabsorption, and secretion). Describe how the kidney contributes to homeostasis. Identify common kidney-related diseases and how to prevent them. Evaluate the importance of maintaining kidney health. Lesson Content: 1. Introduction to the Human Kidney The kidneys are vital organs in the human body responsible for filtering waste from the blood and regulating water and electrolyte balance. They are part of the excretory system and play a crucial role in homeostasis. Location: The kidneys are located in the abdominal cavity, on either side of the spine, just below the rib cage. Each kidney is bean-shaped and about the size of a fi...
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JAMB Mathematics Past Questions and Answers (CBT Practice)

 

Introduction

Mathematics in JAMB (UTME) is designed to test logical reasoning, problem-solving ability, and understanding of key mathematical concepts such as algebra, geometry, trigonometry, statistics, and arithmetic. Success requires strong mastery of formulas, accuracy, and regular CBT-style practice. This set contains 100 JAMB-standard objective questions with properly shuffled options A–D and answers.

OBJECTIVE QUESTIONS

Instruction: Choose the correct option A–D.

1–25: Number and Algebra

  1. Simplify: 3(2x + 4) − 2x
    A. 4x + 12 B. 6x + 12 C. 2x + 4 D. 8x + 12
    Answer: A

  2. If x = 3, evaluate x² − 2x
    A. 3 B. 6 C. 9 D. 12
    Answer: A

  3. Solve: 5x − 7 = 18
    A. 3 B. 4 C. 5 D. 6
    Answer: C

  4. Find the HCF of 18 and 24
    A. 3 B. 6 C. 9 D. 12
    Answer: B

  5. Find the LCM of 6 and 8
    A. 12 B. 18 C. 24 D. 48
    Answer: C

  6. Simplify: 2³ × 2⁴
    A. 64 B. 128 C. 32 D. 16
    Answer: B

  7. Evaluate: (3² + 4²)
    A. 25 B. 49 C. 81 D. 16
    Answer: A

  8. Simplify: ¾ of 80
    A. 40 B. 50 C. 60 D. 70
    Answer: C

  9. Convert 0.6 to fraction
    A. 1/2 B. 3/5 C. 2/3 D. 4/5
    Answer: B

  10. If 2x + 3 = 11, find x
    A. 2 B. 3 C. 4 D. 5
    Answer: C

  11. Solve: x/3 = 7
    A. 18 B. 20 C. 21 D. 24
    Answer: C

  12. Simplify: 5x − 2x + 3x
    A. 6x B. 7x C. 8x D. 9x
    Answer: C

  13. If x = 2, find 3x² + x
    A. 10 B. 12 C. 14 D. 16
    Answer: C

  14. Expand: (x + 5)(x + 2)
    A. x² + 7x + 10 B. x² + 10x + 7 C. x² + 5x + 2 D. x² + 3x + 10
    Answer: A

  15. Factorize: x² − 16
    A. (x − 4)(x + 4) B. (x − 8)(x + 2) C. (x − 2)(x + 8) D. (x − 1)(x + 16)
    Answer: A

  16. Solve: 2(x − 3) = 10
    A. 4 B. 5 C. 6 D. 7
    Answer: C

  17. If 3x = 27, find x
    A. 6 B. 7 C. 8 D. 9
    Answer: D

  18. Evaluate: x² − 5x when x = 5
    A. 0 B. 10 C. 15 D. 25
    Answer: A

  19. If a number is increased by 20% to become 120, find the number
    A. 90 B. 95 C. 100 D. 110
    Answer: C

  20. Solve: x − 4 = 9
    A. 3 B. 5 C. 13 D. 15
    Answer: C

  21. If x + y = 12 and x = 5, find y
    A. 6 B. 7 C. 8 D. 9
    Answer: B

  22. Simplify: 4x + 3x − x
    A. 5x B. 6x C. 7x D. 8x
    Answer: C

  23. If x = 4, evaluate x³
    A. 12 B. 16 C. 64 D. 256
    Answer: C

  24. Solve: x² = 49
    A. 5 B. 6 C. 7 D. 8
    Answer: C

  25. Simplify: 6x ÷ 3
    A. x B. 2x C. 3x D. 6x
    Answer: B

26–50: Functions, Fractions & Word Problems

  1. If f(x) = 2x + 1, find f(3)
    A. 5 B. 6 C. 7 D. 8
    Answer: C

  2. Solve: 1/2 + 1/3
    A. 2/5 B. 3/5 C. 5/6 D. 1/6
    Answer: C

  3. Find the reciprocal of 5/8
    A. 8/5 B. 5/8 C. 1/5 D. 1/8
    Answer: A

  4. A number decreased by 10% becomes 90. Find the number
    A. 95 B. 100 C. 105 D. 110
    Answer: B

  5. Solve: 4x − 8 = 0
    A. 1 B. 2 C. 3 D. 4
    Answer: B

  6. If 5 pencils cost ₦200, cost of 1 pencil is
    A. ₦30 B. ₦35 C. ₦40 D. ₦45
    Answer: C

  7. Ratio of 2:3 means
    A. 2/5 B. 3/2 C. 2/3 D. 5/2
    Answer: C

  8. Simplify: ½ of 36
    A. 16 B. 18 C. 20 D. 22
    Answer: B

  9. Find 25% of 200
    A. 25 B. 40 C. 50 D. 60
    Answer: C

  10. If x = 6, find x² + 2x
    A. 48 B. 54 C. 60 D. 72
    Answer: A

  11. Solve: 3(x + 2) = 15
    A. 2 B. 3 C. 4 D. 5
    Answer: B

  12. If y = 2x and x = 5, y =
    A. 5 B. 8 C. 10 D. 12
    Answer: C

  13. Find ⅔ of 45
    A. 25 B. 30 C. 35 D. 40
    Answer: B

  14. Simplify: 0.25 as fraction
    A. 1/2 B. 1/3 C. 1/4 D. 1/5
    Answer: C

  15. Solve: x/5 = 6
    A. 20 B. 25 C. 30 D. 35
    Answer: C

  16. If x − 1 = 9, x =
    A. 7 B. 8 C. 9 D. 10
    Answer: D

  17. Find mean of 2, 4, 6
    A. 2 B. 3 C. 4 D. 5
    Answer: C

  18. Mode of 1,2,2,3,4 is
    A. 1 B. 2 C. 3 D. 4
    Answer: B

  19. Median of 3,5,7 is
    A. 3 B. 5 C. 7 D. 9
    Answer: B

  20. Probability of getting head in a coin is
    A. 0 B. 1/4 C. 1/2 D. 1
    Answer: C

  21. If x = 10, 2x − 5 =
    A. 10 B. 15 C. 20 D. 25
    Answer: B

  22. Simplify: (x + 2)² when x = 1
    A. 4 B. 6 C. 9 D. 16
    Answer: C

  23. If 3x = 12, x =
    A. 2 B. 3 C. 4 D. 5
    Answer: C

  24. Convert 0.5 to percentage
    A. 25% B. 50% C. 75% D. 100%
    Answer: B

  25. If x² = 25, x =
    A. 3 B. 4 C. 5 D. 6
    Answer: C

51–100: Geometry, Trigonometry & Statistics

  1. Sum of angles in a triangle is
    A. 90° B. 180° C. 270° D. 360°
    Answer: B

  2. Area of rectangle =
    A. l + b B. l × b C. 2(l + b) D. l²
    Answer: B

  3. Area of triangle =
    A. ½bh B. bh C. 2bh D. b + h
    Answer: A

  4. Perimeter of square =
    A. a² B. 2a C. 3a D. 4a
    Answer: D

  5. Volume of cube =
    A. a² B. a³ C. 2a D. 4a
    Answer: B

  6. Circumference of circle =
    A. πr² B. 2πr C. πd² D. r²
    Answer: B

  7. Diameter of circle =
    A. r B. 2r C. r² D. πr
    Answer: B

  8. π is approximately
    A. 2.14 B. 3.14 C. 3.41 D. 4.13
    Answer: B

  9. Right angle =
    A. 45° B. 60° C. 90° D. 180°
    Answer: C

  10. Acute angle is
    A. >90° B. <90° C. =90° D. 180°
    Answer: B

  11. Obtuse angle is
    A. <90° B. =90° C. >90° D. 0°
    Answer: C

  12. sin 90° =
    A. 0 B. 1 C. -1 D. 2
    Answer: B

  13. cos 0° =
    A. 0 B. 1 C. -1 D. 2
    Answer: B

  14. tan 45° =
    A. 0 B. 1 C. 2 D. -1
    Answer: B

  15. Mean is
    A. middle value B. average C. mode D. range
    Answer: B

  16. Range =
    A. max − min B. max + min C. min ÷ max D. max × min
    Answer: A

  17. Probability ranges between
    A. 0 and 10 B. 1 and 100 C. 0 and 1 D. -1 and 1
    Answer: C

  18. Even number example
    A. 3 B. 5 C. 8 D. 9
    Answer: C

  19. Odd number example
    A. 2 B. 4 C. 6 D. 7
    Answer: D

  20. Prime number example
    A. 9 B. 6 C. 7 D. 8
    Answer: C

  21. Composite number example
    A. 2 B. 3 C. 4 D. 5
    Answer: C

  22. 10² =
    A. 10 B. 20 C. 100 D. 1000
    Answer: C

  23. 3³ =
    A. 6 B. 9 C. 27 D. 81
    Answer: C

  24. 4³ =
    A. 12 B. 16 C. 32 D. 64
    Answer: D

  25. 5² =
    A. 10 B. 15 C. 20 D. 25
    Answer: D

  26. 6² =
    A. 12 B. 18 C. 30 D. 36
    Answer: D

  27. 7² =
    A. 42 B. 49 C. 56 D. 63
    Answer: B

  28. 8² =
    A. 54 B. 60 C. 64 D. 68
    Answer: C

  29. 9² =
    A. 72 B. 81 C. 90 D. 99
    Answer: B

  30. 11² =
    A. 111 B. 121 C. 131 D. 141
    Answer: B

  31. 12² =
    A. 124 B. 132 C. 144 D. 156
    Answer: C

  32. 13² =
    A. 156 B. 169 C. 182 D. 195
    Answer: B

  33. 14² =
    A. 184 B. 196 C. 208 D. 220
    Answer: B

  34. 15² =
    A. 225 B. 235 C. 245 D. 255
    Answer: A

  35. 16² =
    A. 240 B. 250 C. 256 D. 266
    Answer: C

  36. 17² =
    A. 279 B. 289 C. 299 D. 309
    Answer: B

  37. 18² =
    A. 314 B. 324 C. 334 D. 344
    Answer: B

  38. 19² =
    A. 361 B. 351 C. 341 D. 331
    Answer: A

  39. 20² =
    A. 300 B. 350 C. 400 D. 450
    Answer: C

  40. 1/2 + 1/4 =
    A. 1/6 B. 3/4 C. 2/3 D. 5/6
    Answer: B

  41. 2/3 + 1/3 =
    A. 1 B. 2 C. 3 D. 4
    Answer: A

  42. 3/4 − 1/4 =
    A. 1/4 B. 1/2 C. 3/4 D. 1
    Answer: B

  43. 5/6 − 1/6 =
    A. 2/3 B. 1/2 C. 1/3 D. 4/6
    Answer: A

  44. 1 km =
    A. 10 m B. 100 m C. 1000 m D. 10000 m
    Answer: C

  45. 1 hour =
    A. 30 min B. 45 min C. 60 min D. 90 min
    Answer: C

  46. 1 day =
    A. 12 hrs B. 18 hrs C. 24 hrs D. 36 hrs
    Answer: C

  47. 1 year =
    A. 300 days B. 365 days C. 400 days D. 450 days
    Answer: B

  48. 50% =
    A. 1/2 B. 1/3 C. 1/4 D. 2/3
    Answer: A

  49. 75% =
    A. 1/2 B. 2/3 C. 3/4 D. 4/5
    Answer: C

  50. 100% =
    A. 0 B. 1 C. 2 D. 10
    Answer: B

EXAM SUCCESS TIPS

  • Master core JAMB formulas
  • Practice algebra and word problems daily
  • Learn geometry and trigonometry basics
  • Improve speed and accuracy
  • Solve past CBT questions regularly
  • Understand fractions and percentages
  • Revise statistics and probability
  • Avoid careless calculation mistakes
  • Use a calculator only when allowed
  • Practice under exam timing conditions

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