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 2871: Evaluate correct to 4 decimal places 877.51 $\times$ 0.015 Options:
  A) 8.8415
  B) 12.4127
  C) 124.1265
  D) 12.44120
  E) 114.1265
  Show Answer
  The correct answer is B .
• Question 2872: Find the solution of the equation x + 2$\sqrt{x-8}$ = 0 Options:
  A) (4, 16)
  B) (2, 4)
  C) (4, 1)
  D) (1, 16)
  E) (16, 16)
  Show Answer
  The correct answer is A .
• Question 2873: Find the sum of the first twenty terms of the progression log a, log a², log a³..... Options:
  A) log a²⁰
  B) log a²¹
  C) log a²⁰⁰
  D) log a²¹⁰
  Show Answer
  The correct answer is D .
• Question 2874: Solve for x in the equation x³ - 5x² - x + 5 = 0 Options:
  A) 1, - 1, or 5
  B) 1, 1, or -5
  C) -1, 1, or -5
  D) 1, 1, or 5
  Show Answer
  The correct answer is A .
• Question 2875: Two ladders of length 5m and 7m lean against a pole and make angles 45° and 60° with the ground respectively. What is their distance apart on the pole correct to two decimal places? Options:
  A) 9.60m
  B) 6.06m
  C) 2.54m
  D) 2.53m
  E) 2.00m
  Show Answer
  The correct answer is D .
• Question 2876:

  What is the circumferenceof latitude 0${}^o$S if R is the radius of the earth?

  Options:
  A) cos $\theta$
  B) 2$\pi$R cos $\theta$
  C) R sin $\theta$
  D) 2 $\pi$ r sin $\theta$
  Show Answer
  The correct answer is B .
• Question 2877: Solve the inequalities -6 $\le$ 4 - 2x < 5 - x. Options:
  A) -1 < x < 5
  B) -1 < x $\le$ 5
  C) -1 $\le$ x $\le$ 6
  D) -1 $\le$ x < 6
  Show Answer
  The correct answer is B .
• Question 2878: Find the minimum value of the function y = x(1+x) Options:
  A) -¹/₄
  B) -¹/₂
  C) ¹/₄
  D) ¹/₂
  Show Answer
  The correct answer is A .
• Question 2879: Find the variance of 2x, 2x-1 and 2x+1 Options:
  A) 2/3
  B) 2
  C) √(2/3)
  D) 1
  Show Answer
  The correct answer is A .
• Question 2880: If cos(x + 40)^o = 0.0872, what is the value of x? Options:
  A) 85^o
  B) 75^o
  C) 65^o
  D) 45^o
  Show Answer
  The correct answer is D .