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 191: Convert 72₆ to a number in base three Options:
  A) 2211
  B) 2121
  C) 1212
  D) 1122
  Show Answer
  The correct answer is D .
• Question 192: 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 193: If y = x sin x, Find $\frac{d^{2}y}{d^{2}x}$ Options:
  A) 2 cosx - x - x sinx
  B) sinx + x cosx
  C) sinx - x cosx
  D) x sinx - 2 cosx
  Show Answer
  The correct answer is A .
• Question 194: Evaluate $\left|\begin{array}{ccc}2& 0& 5\\ 4& 6& 3\\ 8& 9& 1\end{array}\right|$ Options:
  A) 5y - 2x -18 = 0
  B) 102
  C) -102
  D) -42
  Show Answer
  The correct answer is C .
• Question 195: If the hypotenuse of a right-angled isosceles triangle is 2cm , what is the area of the triangle? Options:
  A) $\frac{1}{\sqrt{2}}$ cm²
  B) 1 cm²
  C) $\sqrt{2}$cm²
  D) 2$sqrt2$cm²
  Show Answer
  The correct answer is B .
• Question 196: Factorize r² - r(2p + q) + 2pq Options:
  A) (r - 2q)(2r - p)
  B) (r - p)(r + p0
  C) (r - q)(r - 2p)
  D) (2r - q)(r + p)
  Show Answer
  The correct answer is C .
• Question 197:

  Evaluate ${\int }_{-1}^1$(2x + 1)²dx

  Options:
  A) 3$\frac{2}{3}$
  B) 4
  C) 4$\frac{1}{3}$
  D) 4$\frac{2}{3}$
  Show Answer
  The correct answer is D .
• Question 198: Solve without using tables log₅(62.5) - log₅($\frac{1}{2}$) Options:
  A) 3
  B) 4
  C) 5
  D) 8
  Show Answer
  The correct answer is A .
• Question 199:

  At what points does the straight line y = 2x + 1 intersect the curve y = 2x² + 5x - 1?

  Options:
  A) (-2, -3) and($\frac{1}{2}$, 2)
  B) (1, 0), (1, 3)
  C) (4, 0) and (0,1)
  D) 2, 0) and (0,1)
  Show Answer
  The correct answer is A .
• Question 200: PQR is the diagram of a semicircle RSP with centre at Q and radius of length 3.5cm. If QPT = 60^o. Find the perimeter of the figure PTRS. $\pi$ = $\frac{22}{7}$ Options:
  A) 25cm
  B) 18cm
  C) 36cm
  D) 29cm
  E) 25.5cm
  Show Answer
  The correct answer is A .