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 1521: Solve 5^{2(x - 1)} x 5^{x + 1} = 0.04 Options:
  A) $\frac{1}{3}$
  B) $\frac{1}{4}$
  C) -$\frac{1}{5}$
  D) -$\frac{1}{3}$
  Show Answer
  The correct answer is D .
• Question 1522: In $\mathrm{\Delta }$XYZ, XY = 3cm, XZ = 5cm and YZ = 7cm. If the bisector of XYZ meets XZ at W, what is the length of XW? Options:
  A) 1.5cm
  B) 25cm
  C) 3cm
  D) 4cm
  E) None of the above
  Show Answer
  The correct answer is A .
• Question 1523: Find the product of (2$\sqrt{y-3y}$) and (3y = 2y) Options:
  A) 4y = y²
  B) 4y + 9y²
  C) 4y - 9y²
  D) -4y - 9y²
  E) 2y + y²
  Show Answer
  The correct answer is C .
• Question 1524: If Q = $\left(\begin{array}{cc}9& -2\\ -7& 4\end{array}\right)$, then |Q| is Options:
  A) -50
  B) -22
  C) 22
  D) 50
  Show Answer
  The correct answer is C .
• Question 1525: If y = $(x^2+3x-1)÷(3x+4).$ Find dy/dx Options:
  A) $(3x^2+8x+7)÷(3x+4{)}^2$
  B) $x^2+2x+(1÷(x+1{)}^2)$
  C) $2x^2+4x+(1÷(2x+4{)}^2)$
  D) $x^2+3x+(2÷(x+3{)}^2)$
  Show Answer
  The correct answer is A .
• Question 1526:

  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 1527:

  X and Y are two sets such that nX = 15, nY = 12 and n{X ∩ Y} = 7. Find n{X ∪ Y}.

  Options:
  A) 21
  B) 225
  C) 15
  D) 20
  Show Answer
  The correct answer is D .
• Question 1528: Express the product of 0.0014 and 0.011 in standard form Options:
  A) 1.54 x 10^-2
  B) 1.54 x 10^-3
  C) 1.54 x 10^-4
  D) 1.54 x 10^-5
  Show Answer
  The correct answer is D .
• Question 1529: The ninary operation * is defined on the set of integers p and q by p*q = pq + p + q. Find 2 * (3 * 4). Options:
  A) 59
  B) 19
  C) 67
  D) 38
  Show Answer
  The correct answer is A .
• Question 1530: An arc of circle of radius 2cm subtends an angle of 60^o at the centre. Find the area of the sector Options:
  A) $\frac{2\pi }{3}$cm²
  B) $\frac{\pi }{2}$cm²
  C) $\frac{\pi }{3}$cm²
  D) $\pi$cm²
  Show Answer
  The correct answer is A .