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 1881: If ₦225.00 yields ₦27.00 in x years simple interest at the rate of 4% per annum, find x Options:
  A) 3
  B) 4
  C) 12
  D) 17
  Show Answer
  The correct answer is A .
• Question 1882:

  $\begin{array}{cccc}\text{Class Interval}& Frequency& \text{Class boundaries}& \text{Class Mid-point}\\ 1.5-1.9& 2& 1.45-1.95& 1.7\\ 2.0-2.4& 21& 1.95-2.45& 2.2\\ 2.5-2.9& 4& 2.45-2.95& 2.7\\ 3.0-2.9& 15& 2.95-3.45& 3.2\\ 3.5-3.9& 10& 3.45-3.95& 3.7\\ 4.0-4.4& 5& 3.95-4.45& 4.2\\ 4.5-4.9& 3& 4.45-4.95& 4.7\end{array}$

  The median of the distribution above is

  Options:
  A) 4.0
  B) 3.4
  C) 3.2
  D) 3.0
  Show Answer
  The correct answer is B .
• Question 1883: Multiply (x² - 3x + 1) by (x - a) Options:
  A) x³ - (3 + a) x² + (1 + 3a)x - a
  B) x³ - (3 - a)x² + 3ax - a
  C) x³ - (3 - a)x² - (1 = 3a) - a
  D) x³ + (3 - a)x² + (1 + 3a) - a
  Show Answer
  The correct answer is A .
• Question 1884: Factorize completely (x² + x)² - (2x + 2)² Options:
  A) (x + 1)(x + 2)(x - 2)
  B) (x + 1) 2(x + 2) (x - 2)
  C) (x + 1)² (x + 2)²
  D) (x + 1)² (x + 2)(x - 2)
  Show Answer
  The correct answer is D .
• Question 1885: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 1886: Find correct to one decimal place, 0.24633 $÷$ 0.0306 Options:
  A) 0.8
  B) 1.8
  C) 8.0
  D) 8.1
  Show Answer
  The correct answer is D .
• Question 1887: If A = $\frac{1}{2}$h (a + b), make ‘a’ the subject of the formula Options:
  A) (2A – 2bh) ÷ b
  B) (2A – bh) ÷ h
  C) (2A – bh) ÷ b
  D) (A – 2bh) ÷ h
  E) (2A – h) ÷ bh
  Show Answer
  The correct answer is B .
• Question 1888: A binary operation $\oplus$ is defines on the set of all positive integers by a $\oplus$ b = ab for all positive integers a, b. Which of the following properties does NOT hold? Options:
  A) closure
  B) identity
  C) positive
  D) inverse
  Show Answer
  The correct answer is D .
• Question 1889: When the expression pm² + qm + 1 is divided by (m - 1), it has a remainder is 4, Find p and q respectively Options:
  A) 2, -1
  B) -1, 2
  C) 3, -2
  D) -2, 3
  Show Answer
  The correct answer is B .
• Question 1890: A binary operation $\ast$ is defined on a set of real numbers by x $\ast$ y = x^y for all real values of x and y. If x $\ast$ 2 = x. Find the possible values of x Options:
  A) 0, 1
  B) 1, 2
  C) 2, 2
  D) 0, 2
  Show Answer
  The correct answer is A .