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 661: Find the derivatives of the function y = 2x²(2x - 1) at the point x = -1 Options:
  A) 18
  B) 16
  C) -4
  D) -6
  Show Answer
  The correct answer is B .
• Question 662: Evaluate 1 − ($\frac{1}{5}$ + 1$\frac{2}{3}$) + (5 + 1$\frac{2}{3}$) Options:
  A) 4
  B) 3
  C) 2$\frac{2}{3}$
  D) 3 $\frac{2}{3}$
  Show Answer
  The correct answer is D .
• Question 663: At what value of x is the function x² + x + 1 minimum? Options:
  A) 1
  B) $\frac{3}{4}$
  C) $\frac{5}{3}$
  D) 9
  Show Answer
  The correct answer is A .
• Question 664: Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number Options:
  A) 2
  B) 3
  C) 4
  D) 5
  E) 6
  Show Answer
  The correct answer is B .
• Question 665: W ∝ L² and W = 6 when L = 4. If L = √17 find W Options:
  A) 6⁷/₈
  B) 6⁵/₈
  C) 6³/₈
  D) 6¹/₈
  Show Answer
  The correct answer is C .
• Question 666: The mean of the ages of ten secondary school pupils is 16 but when the age of their teacher is added to it the men becomes 19. Find the age of the teacher Options:
  A) 27
  B) 35
  C) 38
  D) 49
  Show Answer
  The correct answer is D .
• Question 667: If $\sqrt{x^2+9}$ = x + 1, solve for x Options:
  A) 5
  B) 4
  C) 3
  D) 2
  E) 1
  Show Answer
  The correct answer is B .
• Question 668: If P = $\left|\begin{array}{cc}5& 3\\ 2& 1\end{array}\right|$ and Q = $\left|\begin{array}{cc}4& 2\\ 3& 5\end{array}\right|$, find 2P + Q Options:
  A) $\left|\begin{array}{cc}7& 7\\ 14& 8\end{array}\right|$
  B) $\left|\begin{array}{cc}14& 8\\ 7& 7\end{array}\right|$
  C) $\left|\begin{array}{cc}7& 7\\ 8& 14\end{array}\right|$
  D) $\left|\begin{array}{cc}8& 14\\ 7& 7\end{array}\right|$
  Show Answer
  The correct answer is B .
• Question 669: If M(4, q) is the mid-point of the line joining L(p, -2) and N(q, p). Find the values of p and q Options:
  A) P = 2, q = 4
  B) p = 3, q = 1
  C) p = 5, q = 3
  D) p = 6, q = 2
  Show Answer
  The correct answer is D .
• Question 670: A sector of a circle of radius 7.2cm which subtends an angle of 300${}^{\circ }$ at the centre is used to form a cone. What is the radius of the base of the cone? Options:
  A) 6cm
  B) 7cm
  C) 8cm
  D) 9cm
  E) 5cm
  Show Answer
  The correct answer is A .