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 1291: The 3rd term of an A.P is 4x - 2y and the 9th term is 10x - 8y. Find the common difference. Options:
  A) 19x - 17y
  B) 8x - 4y
  C) x - y
  D) 2x
  Show Answer
  The correct answer is C .
• Question 1292: If U = {x : x is an integer and 1 ≤ x ≤ }
  E¹ = {x: x is a multiple of 3}
  E² = {x: x is a multiple of 4} and an integer is picked at random from U, find the probability that it is not in E² Options:
  A) $\frac{3}{4}$
  B) $\frac{3}{10}$
  C) $\frac{1}{4}$
  D) $\frac{1}{20}$
  Show Answer
  The correct answer is A .
• Question 1293: Find the derivative of $\frac{\sin \theta }{\cos \theta }$ Options:
  A) sec² $\theta$
  B) tan $\theta$ cosec $\theta$
  C) cosec $\theta$sec $\theta$
  D) cosec²$\theta$
  Show Answer
  The correct answer is A .
• Question 1294:

  $\frac{0.00256\times 0.0064}{0.025\times 0.08}$

  Options:
  A) 8.8 x 10${}^{-1}$
  B) 8.8 x 10${}^{-2}$
  C) 8.8 x 10${}^{-3}$
  D) 8.8 x 10${}^3$
  Show Answer
  The correct answer is C .
• Question 1295:

  If (x - a) is a factor of bx - ax + x², find the other factor.

  Options:
  A) (x + b)
  B) (x - b)
  C) (a + b)
  D) (a - b)
  Show Answer
  The correct answer is A .
• Question 1296: Evaluate $\frac{81.81+99.44}{20.09+36.16}$ correct to 3 significant figures. Options:
  A) 6.21
  B) 3.22
  C) 2.78
  D) 2.13
  Show Answer
  The correct answer is B .
• Question 1297: Given distribution of color beads: blue, black, yellow, white and brown with frequencies 1, 2, 3, 4, and 5 respectively. Find the probability that a bead picked at random will be blue or white. Options:
  A) 7/15
  B) 2/5
  C) 1/3
  D) 1/15
  Show Answer
  The correct answer is C .
• Question 1298: If f(x) = 2(x - 3)² + 3(x - 3) + 4 and g(y) = 5 + y, find g [f(3)] and f[g(4)]. Options:
  A) 3 and 4
  B) -3 and 4
  C) -3 and -4
  D) 3 and -4
  E) 0 and 5
  Show Answer
  The correct answer is A .
• Question 1299:

  

  In an examination, the result of a certain school is as shown in the histogram above. How many candidates did the school present?

  Options:
  A) 12
  B) 16
  C) 18
  D) 19
  Show Answer
  The correct answer is D .
• Question 1300:

  If $\text{N}=\left(\begin{array}{ccc}3& 5& -4\\ 6& -3& -5\\ -2& 2& 1\end{array}\right)$, find |N|.

  Options:
  A) 65
  B) 23
  C) 17
  D) 91
  Show Answer
  The correct answer is C .