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: If P = $\left(\begin{array}{cc}2& -3\\ 1& 1\end{array}\right)$ Options:
  A) $\left(\begin{array}{cc}-\frac{1}{5}& -\frac{3}{5}\\ -\frac{1}{5}& -\frac{2}{5}\end{array}\right)$
  B) $\left(\begin{array}{cc}\frac{1}{5}& \frac{3}{5}\\ \frac{1}{5}& \frac{2}{5}\end{array}\right)$
  C) $\left(\begin{array}{cc}-\frac{1}{5}& \frac{3}{5}\\ -\frac{1}{5}& \frac{2}{5}\end{array}\right)$
  D) $\left(\begin{array}{cc}\frac{1}{5}& \frac{3}{5}\\ -\frac{1}{5}& \frac{2}{5}\end{array}\right)$
  Show Answer
  The correct answer is D .
• Question 1292: Factorize 9(x + y)² - 4(x - y)² Options:
  A) (x + y)(5x + y)
  B) (x + y)²
  C) (x + 5y)(5x + y)
  D) 5(x + y)²
  Show Answer
  The correct answer is C .
• Question 1293:

  

  The diagram above is a circle with centre C. P, Q and S are points on the circumference. PS and SR are tangents to the circle. ∠PSR = 36${}^{\circ }$. Find ∠PQR

  Options:
  A) 72${}^{\circ }$
  B) 36${}^{\circ }$
  C) 144${}^{\circ }$
  D) 54${}^{\circ }$
  Show Answer
  The correct answer is A .
• Question 1294:

  The cost C of running a school is directly proportional to the number of students N, if 20 students cost #10,000, How many students can #1,000,000 cover?

  Options:
  A) 3000
  B) 1000
  C) 2000
  D) 4000
  Show Answer
  The correct answer is C .
• Question 1295: The locus of all points at a distance 8cm from a point N passes through points T and S. If S is equidistant from T and N, find the area of triangle STN. Options:
  A) 4$\sqrt{3c{m}^2}$
  B) 16$\sqrt{3c{m}^2}$
  C) 32cm²
  D) 64cm²
  Show Answer
  The correct answer is B .
• Question 1296:

  The ratio of the length of two similar rectangular blocks is 2 : 3. If the volume of the larger block is 351cm${}^3$, then the volume of the other block is?

  Options:
  A) 234.00 cm³
  B) 526.50 cm³
  C) 166.00 cm³
  D) 687cm³
  Show Answer
  The correct answer is A .
• Question 1297: The angle between the positive horizontal axis and a given line is 135^o. Find the equation of the line if it passes through the point (2,3) Options:
  A) x - y = 1
  B) x + y = 1
  C) x + y = 5
  D) x - y = 5
  Show Answer
  The correct answer is C .
• Question 1298: If y = x sinx, find $\frac{dy}{dx}$ Options:
  A) sin x - x cosx
  B) sinx + x cosx
  C) sinx - cosx
  D) sinx + cosx
  Show Answer
  The correct answer is B .
• Question 1299:

  Find p, q for which $\left(\begin{array}{cc}2p& 8\\ 3& -5q\end{array}\right)$$\left(\begin{array}{c}1\\ 2\end{array}\right)$$\left(\begin{array}{c}24\\ -17\end{array}\right)$

  Options:
  A) -1, 4
  B) 4, 5
  C) 4, 2
  D) 2, -4
  Show Answer
  The correct answer is C .
• Question 1300: The weights of 30 new-born babies are given as follows: 6, 9, 5, 7, 6, 7, 5, 8, 9, 5, 7, 5, 8, 7, 8, 7, 5, 6, 5, 7, 6, 9, 9, 7, 8, 8, 7, 8, 9, 8. The mode is Options:
  A) 6
  B) 5
  C) 8
  D) 7
  E) 10
  Show Answer
  The correct answer is D .