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 1311: Calculate the standard deviation of the following data: 7, 8, 9, 10, 11, 12, 13. Options:
  A) 2
  B) 4
  C) 10
  D) 11
  Show Answer
  The correct answer is A .
• Question 1312:

  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 .
• Question 1313:

  Find p in terms of q if log₃ p + 3 log₃ q = 3

  Options:
  A) ($\frac{3}{q}$)³
  B) ($\frac{q}{3}$)^{$\frac{1}{3}$}
  C) ($\frac{q}{3}$)³
  D) ($\frac{3}{q}$)^{$\frac{1}{3}$}
  Show Answer
  The correct answer is A .
• Question 1314: What is the next number in the series 2, 1, $\frac{1}{2}$, $\frac{1}{4}$... Options:
  A) $\frac{1}{3}$
  B) $\frac{2}{8}$
  C) $\frac{3}{7}$
  D) $\frac{1}{8}$
  Show Answer
  The correct answer is D .
• Question 1315:

  

  The shaded portion in the graph is represented by

  Options:
  A) y + x - x $\le$ 0, y - x $\le$ 0
  B) y - x + x, 3 $\le$ 0, y - x $\ge$ 0
  C) y + x - 3 $\ge$ 0, y + x $\le$ 0
  D) y - x + x3 $\ge$ 0, y + x $\le$ 0
  Show Answer
  The correct answer is C .
• Question 1316: If log₃x² = -8, what is x? Options:
  A) $\frac{1}{3}$
  B) $\frac{1}{9}$
  C) $\frac{1}{27}$
  D) $\frac{1}{81}$
  Show Answer
  The correct answer is D .
• Question 1317: The sum of the first n terms of an arithmetic progresssion is 252. If the first term is -16 and the last term is 72, find the number of terms in the series Options:
  A) 6
  B) 7
  C) 8
  D) 9
  Show Answer
  The correct answer is D .
• Question 1318: If a rod of length 250cm is measured as 255cm long in error, what is the percentage error in the measurement? Options:
  A) 55
  B) 10
  C) 5
  D) 4
  E) 2
  Show Answer
  The correct answer is E .
• Question 1319: Solve the simultaneous linear equations: 2x + 5y = 11, 7x + 4y = 2 Options:
  A) x = -8, y = 1
  B) x = -2, y = 4
  C) x = $\frac{-34}{27}$, y = $\frac{73}{27}$
  D) x = 7, y = -9
  Show Answer
  The correct answer is C .
• Question 1320: 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 .