Mathematics Exam Past Questions and Answers | JAMB, WAEC and NECO

Mathematics looks at measurement, relationships, and properties of numbers and groups using numbers and symbols. Important topics in math include arithmetic, algebra, geometry, and calculus.

• Question 421:

  The volume of a cylinder whose height is 4cm and whose radius 5cm is equal to (π = 3.14)

  Options:
  A) 313cm²
  B) 145cm²
  C) 314cm²
  D) 214cm²
  Show Answer
  The correct answer is C .
• Question 422: If x + $\frac{1}{x}$ = 4, find x² + $\frac{1}{x^2}$ Options:
  A) 16
  B) 14
  C) 12
  D) 9
  Show Answer
  The correct answer is B .
• Question 423: What is the derivative of t² sin (3t - 5) with respect to t? Options:
  A) 6t cos (3t - 5)
  B) 2t sin (3t - 5) - 3t² cos (3t - 5)
  C) 2t sin (3t - 5) + 3t² cos (3t - 5)
  D) 2t sin (3t - 5) + t² cos 3t
  Show Answer
  The correct answer is C .
• Question 424: If 3 boys shared x oranges among themselves in the ratio 3:5:8, and smallest share was 45 oranges, find the value of x Options:
  A) 75
  B) 120
  C) 165
  D) 195
  E) 240
  Show Answer
  The correct answer is E .
• Question 425: If 5, 8, 6 and 2 occur with frequencies 3, 2, 4 and 1 respectively. Find the product of the modal and the median number Options:
  A) 36
  B) 48
  C) 30
  D) 40
  Show Answer
  The correct answer is A .
• Question 426: The gradient of a curve is 2x + 7 and the curve passes through point (2, 0). find the equation of the curve. Options:
  A) y = x² + 7x + 9
  B) y = x² + 7x - 18
  C) y = x² + 7x + 18
  D) y = x² + 14x + 11
  Show Answer
  The correct answer is B .
• Question 427: Evaluate $\frac{6.3\times {10}^5}{81\times {10}^3}$ to 3 significant fiqures Options:
  A) 77.80
  B) 778.0
  C) 7.870
  D) 8.770
  E) 88.70
  Show Answer
  The correct answer is A .
• Question 428: Two cars X and Y start at the same point and travel towards a point P which is 150km away. If the average speed of Y is 60km per hour and x arrives at P 25 minutes earlier than Y. What is the average speed of X? Options:
  A) 51$\frac{3}{7}$km per hour
  B) 72km per hour
  C) 37$\frac{1}{2}$ km per hour
  D) 66km per hour
  E) 75km per hour
  Show Answer
  The correct answer is B .
• Question 429: The value of (0.03)³ - (0.02)³ is Options:
  A) 0.019
  B) 0.0019
  C) 0.00019
  D) 0.000019
  E) 0.000035
  Show Answer
  The correct answer is D .
• Question 430:

  The nth term of the sequence 3, 9, 27, 81.... is

  Options:
  A) 3 x 3^n-2
  B) 3 x 3^n-1
  C) 3 x 3ⁿ⁺²
  D) 3 x 3ⁿ⁺¹
  Show Answer
  The correct answer is B .