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 341:

  Find the area, to the nearest cm${}^2$, of the triangle whose sides are in the ratio 2 : 3 : 4 and whose perimeter is 180 cm.

  Options:
  A) 1162 cm${}^2$
  B) 1163 cm${}^2$
  C) 1160 cm${}^2$
  D) 1161 cm${}^2$
  Show Answer
  The correct answer is A .
• Question 342:

  If x + y = 90, simplify (sinx + siny)²−2sinxsiny

  Options:
  A) 1
  B) 0
  C) 2
  D) -1
  Show Answer
  The correct answer is A .
• Question 343: if x - 1 and x + 1 are both factors of the equation x ³ + px² + qx + 6 = 0, evaluate p and q Options:
  A) -6, -1
  B) 6, 1
  C) 1, -1
  D) 6, -6
  Show Answer
  The correct answer is A .
• Question 344: Find the probability that a number selected at random from 41 to 56 is a multiply of 9 Options:
  A) $\frac{1}{8}$
  B) $\frac{2}{15}$
  C) $\frac{3}{16}$
  D) $\frac{7}{8}$
  Show Answer
  The correct answer is A .
• Question 345: What value of Q will make the expression 4x² + 5x + Q a complete square? Options:
  A) $\frac{25}{16}$
  B) $\frac{25}{64}$
  C) $\frac{5}{8}$
  D) $\frac{5}{4}$
  Show Answer
  The correct answer is A .
• Question 346: Find the value of x for which the function f(x) = 2x³ - x² - 4x + 4 has a maximum value Options:
  A) $\frac{2}{3}$
  B) 1
  C) -1
  D) -$\frac{2}{3}$
  Show Answer
  The correct answer is B .
• Question 347:

  $\begin{array}{cccccc}\text{Values}& 0& 1& 2& 3& 4\\ \text{Frequency}& 1& 2& 2& 1& 9\end{array}$

  Find the mode of the distribution above

  Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is D .
• Question 348: The larger value of y for which (y - 1)² = 4y - 7 is Options:
  A) 2
  B) 4
  C) 6
  D) 7
  E) 8
  Show Answer
  The correct answer is B .
• Question 349: A cone is formed by bending a sector of a circle Saving an angle or 210°. Find the radius of the base of the cone. If the diameter of the circle is 12cm. Options:
  A) 7.00cm
  B) 1.75cm
  C) 21cm
  D) 3.50cm
  E) 2.21cm
  Show Answer
  The correct answer is D .
• Question 350: The sum of the first n terms of the arithmetic progression 5, 11, 17, 23, 29, 35, ... is Options:
  A) n(3n - 0.5)
  B) n(3n + 2)
  C) n(3n + 2.5)
  D) n(3n + 5)
  Show Answer
  The correct answer is B .