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 2311: If the maximum value of $y=1+hx-3x^2$ is $13$, find $h$. Options:
  A) 13
  B) 12
  C) 11
  D) 10
  E) 14
  Show Answer
  The correct answer is B .
• Question 2312:

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

  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 2313:

  Integrate ${\int }_{-1}^2(2x^2+x)\mathrm{d}x$

  Options:
  A) $4\frac{1}{2}$
  B) $3\frac{1}{2}$
  C) $7\frac{1}{2}$
  D) $5\frac{1}{4}$
  Show Answer
  The correct answer is C .
• Question 2314: The binary operation $\oplus$ is defined by x $\ast$ y = xy - y - x for all real values x and y. If x $\ast$ 3 = 2$\ast$, find x Options:
  A) -1
  B) 4
  C) 1
  D) 5
  Show Answer
  The correct answer is C .
• Question 2315:

  Find the length of a side of a rhombus whose diagonals are 6cm and 8cm

  Options:
  A) 8cm
  B) 5cm
  C) 4cm
  D) 3cm
  Show Answer
  The correct answer is B .
• Question 2316: Evaluate $\frac{lo{g}_5(0.04)}{lo{g}_{3}18-lo{g}_{3}2}$ Options:
  A) 1
  B) -1
  C) $\frac{2}{3}$
  D) -$\frac{2}{3}$
  Show Answer
  The correct answer is B .
• Question 2317: (3.2)² - (1.8)² equals Options:
  A) 7.0
  B) 2.56
  C) 13.48
  D) 2.0
  E) 0.07
  Show Answer
  The correct answer is A .
• Question 2318: Simplify 2a² -4ab - 6a² - 10ab + 5ab - 5a² Options:
  A) -9(a + b)
  B) 9(a + b)
  C) -9a (a + b)
  D) 9a(a - b)
  E) 9b(a + b)
  Show Answer
  The correct answer is C .
• Question 2319:

  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 2320:

  

  The equation of the graph is

  Options:
  A) y = (x - 3)³
  B) y = (x + 3)³
  C) y = x³ - 27
  D) y = -x³ + 27
  Show Answer
  The correct answer is C .