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 1441: Find P if $\frac{x-3}{(1-x)(x+2)}$ = $\frac{p}{1-x}$ + $\frac{Q}{x+2}$ Options:
  A) $\frac{-2}{3}$
  B) $\frac{-5}{3}$
  C) $\frac{5}{3}$
  D) $\frac{2}{3}$
  Show Answer
  The correct answer is A .
• Question 1442:

  

  In the figure, PS = RS = QS and QRS = 50^o. Find QPR

  Options:
  A) 25^o
  B) 40^o
  C) 50^o
  D) 65^o
  Show Answer
  The correct answer is A .
• Question 1443: A binary operation * on the set of rational numbers is defined as $x\times y=\frac{x^2-y^2}{2xy}find-5\times 3$ Options:
  A) $\frac{-8}{15}$
  B) $\frac{8}{15}$
  C) $\frac{17}{15}$
  D) $\frac{-17}{15}$
  Show Answer
  The correct answer is A .
• Question 1444:

  A coin is thrown 3 times. What is the probability that atleast one head is obtained?

  Options:
  A) $\frac{7}{8}$
  B) $\frac{3}{8}$
  C) None the above
  D) $\frac{1}{8}$
  Show Answer
  The correct answer is A .
• Question 1445:

  Integrate the expression 6x${}^2$ - 2x + 1

  Options:
  A) 3x${}^3$ - 2x${}^2$ + x + c
  B) 2x${}^3$ - x${}^2$ + x + c
  C) 2x${}^3$ – 3x${}^2$ + c
  D) x${}^3$ + x${}^2$ – x + c
  Show Answer
  The correct answer is B .
• Question 1446: Evaluate$\left(\begin{array}{cc}3& -2\\ -7& 5\end{array}\right)$ + 2$\left(\begin{array}{cc}-2& 4\\ 3& -1\end{array}\right)$ Options:
  A) $\left(\begin{array}{cc}-1& 6\\ -1& 3\end{array}\right)$
  B) $\left(\begin{array}{cc}3& 4\\ -2& 6\end{array}\right)$
  C) $\left(\begin{array}{cc}-1& 6\\ 1& 3\end{array}\right)$
  D) $\left(\begin{array}{cc}3& 4\\ 2& 6\end{array}\right)$
  Show Answer
  The correct answer is A .
• Question 1447: Find the value of 2a - b if a + b = 8 and 4a - b = 22 Options:
  A) 2
  B) 4
  C) 6
  D) 8
  E) 10
  Show Answer
  The correct answer is E .
• Question 1448:

  Solve for x and y respectively in the simultaneous equations -2x - 5y = 3, x + 3y = 0

  Options:
  A) -3, -9
  B) 9, -3
  C) -9,3
  D) 3, -9
  Show Answer
  The correct answer is C .
• Question 1449: The sum of the first three terms of a geometric progression is half its sum to infinity. Find the positive common ratio of the progression. Options:
  A) $\frac{1}{4}$
  B) $\sqrt{\frac{3}{2}}$
  C) $\frac{1}{\sqrt{3}}$
  D) $\frac{1}{\sqrt{2}}$
  Show Answer
  The correct answer is B .
• Question 1450: If log₁₀2 = x, express log₁₀12.5 in terms of x Options:
  A) 2(1 + x)
  B) 2 + 3x
  C) 2(1 - x)
  D) 2 - 3x
  Show Answer
  The correct answer is D .