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 841:

  Factorize completely 81a${}^4$ - 16b${}^4$

  Options:
  A) (3a + 2b)(2a - 3b)(9a² + 4b²)
  B) (3a - 2b)(2a - 3b)(4a² - 9b²)
  C) (3a - 2b)(3a + 2b)(9a² + 4b²)
  D) (6a - 2b)(8a - 3b)(4a³ - 9b²)
  Show Answer
  The correct answer is C .
• Question 842: If log₂ y = 3 - log₂x $\frac{3}{2}$ find y when x = 4 Options:
  A) 8
  B) $\sqrt{65}$
  C) 4$\sqrt{2}$
  D) 3
  E) 1
  Show Answer
  The correct answer is E .
• Question 843:

  Evaluate ${}^{n^2+1}$C${}_{n+5}$ if n = 3

  Options:
  A) 55
  B) 45
  C) 35
  D) 25
  Show Answer
  The correct answer is B .
• Question 844:

  Tossing a coin and rolling a die are two separate events. What is the probability of obtaining a tail on the coin and an even number on the die?

  Options:
  A) $\frac{1}{16}$
  B) $\frac{1}{6}$
  C) $\frac{1}{4}$
  D) $\frac{3}{8}$
  Show Answer
  The correct answer is C .
• Question 845:

  

  The angles marked in the figure are measured in degrees. Find x.

  Options:
  A) 45${}^{\circ }$
  B) 90${}^{\circ }$
  C) 60${}^{\circ }$
  D) 15${}^{\circ }$
  E) 30${}^{\circ }$
  Show Answer
  The correct answer is E .
• Question 846: The first and last term of a linear sequence (AP) are 6 and 10 respectively. If the sum of the sequence is 40. Find the number of terms. Options:
  A) nth = 3
  B) nth = 4
  C) nth = 5
  D) nth = 6
  Show Answer
  The correct answer is C .
• Question 847:

  This table below gives the scores of a group of students in a Further Mathematics Test.

  Score	1	2	3	4	5	6	7
  Frequency	4	6	8	4	10	6	2

  Calculate the mean deviation for the distribution

  Options:
  A) 4.32
  B) 2.81
  C) 1.51
  D) 3.90
  Show Answer
  The correct answer is C .
• Question 848:

  Find the derivative of y = ( $\frac{1}{3}$x + 6)

  Options:
  A) 2( $\frac{1}{3}$x + 6
  B) $\frac{2}{3}$ ( $\frac{1}{3}$x + 6)
  C) $\frac{2}{3}$ ( $\frac{1}{3}$x + 6)²
  D) $\frac{1}{3}$ ( $\frac{1}{3}$x + 6)²
  Show Answer
  The correct answer is B .
• Question 849: Evaluate ${\int }_1^2$(6x² - 2x)dx Options:
  A) 16
  B) 13
  C) 12
  D) 11
  Show Answer
  The correct answer is D .
• Question 850:

  If $6x^3+2x^2-5x+1$ divides $x^2-x-1$, find the remainder.

  Options:
  A) 9x + 9
  B) 2x + 6
  C) 6x + 8
  D) 5x - 3
  Show Answer
  The correct answer is A .