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 1271: A polynomial in x whose roots are ⁴/₃ and -³/₅ is Options:
  A) 15x² - 11x – 12
  B) 15x² + 11x – 12
  C) 12x² - x – 12
  D) 12x² + 11x – 15
  Show Answer
  The correct answer is A .
• Question 1272:

  $\begin{array}{ccccccc}\text{Marks}& 3& 4& 5& 6& 7& 8\\ \text{Frequency}& 5& y-1& y& 9& 4& 1\end{array}$

  The table above gives the frequency distribution of marks obtained by a group of students in a test. If the total mark scored is 200, the value of y is

  Options:
  A) 11
  B) 15
  C) 9
  D) 13
  Show Answer
  The correct answer is A .
• Question 1273: Simplify $\frac{3^n-3^{n-1}}{3^3\times 3^n-27\times 3^{n-1}}$ Options:
  A) 1
  B) 6
  C) $\frac{1}{27}$
  D) $\frac{4}{3}$
  Show Answer
  The correct answer is C .
• Question 1274:

  If y = 23${}_{\text{five}}$ + 101${}_{\text{three}}$, find y, leaving your answer in base two

  Options:
  A) 1110
  B) 10111
  C) 11101
  D) 111100
  Show Answer
  The correct answer is B .
• Question 1275: The derivatives of (2x + 1)(3x + 1) is Options:
  A) 12x + 1
  B) 6x + 5
  C) 6x + 1
  D) 12x + 5
  Show Answer
  The correct answer is D .
• Question 1276: A cylinder of height h and radius r is open at one end. Its surface area is Options:
  A) 2$\pi$rh
  B) $\pi$r²h
  C) 2$\pi$rh + $\pi$r²
  D) 2$\pi$rh + 2$\pi$r²
  Show Answer
  The correct answer is C .
• Question 1277:

  Differentiate the function y = $\sqrt[3]{x^2}(2x-x^2)$

  Options:
  A) $\frac{dy}{dx}=\frac{10x^{5/3}}{3}-\frac{8x^{2/3}}{3}$
  B) $\frac{dy}{dx}=\frac{10x^{2/3}}{3}-\frac{8x^{5/3}}{3}$
  C) $\frac{dy}{dx}=\frac{10x^{5/3}}{3}-\frac{8x^{5/3}}{3}$
  D) $\frac{dy}{dx}=\frac{10x^{2/3}}{3}-\frac{8x^{2/3}}{3}$
  Show Answer
  The correct answer is B .
• Question 1278: The set of value of x and y which satisfies the equations x² - y - 1 = 0 and y - 2x + 2 = 0 is Options:
  A) 1, 0
  B) 1, 1
  C) 2, 2
  D) 0, 2
  E) 1, 2
  Show Answer
  The correct answer is A .
• Question 1279:

  The sum of the ages of Musa and Lawal is 28 years. After sharing a certain sum of money in the ratio of their ages, Musa gets ₦600 and Lawal ₦800. How old is Lawal?

  Options:
  A) 14 years
  B) 20 years
  C) 12 years
  D) 16 years
  Show Answer
  The correct answer is D .
• Question 1280: Find the derivative of $\frac{\sin \theta }{\cos \theta }$ Options:
  A) sec² $\theta$
  B) tan $\theta$ cosec $\theta$
  C) cosec $\theta$sec $\theta$
  D) cosec²$\theta$
  Show Answer
  The correct answer is A .