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 1781:

  

  In the figure above, TZ is tangent to the circle QPZ. Find x if TZ = 6 units and PQ = 9 units

  Options:
  A) 3
  B) 4
  C) 5
  D) 6
  Show Answer
  The correct answer is B .
• Question 1782: Find the value of k such that $t^2$ + kt + $\frac{25}{4}$ is a perfect square Options:
  A) 5
  B) 3
  C) $\frac{5}{2}$
  D) $\frac{5}{4}$
  E) $\frac{1}{5}$
  Show Answer
  The correct answer is A .
• Question 1783: Simplify $\frac{5+\sqrt{7}}{3+\sqrt{7}}$ Options:
  A) 17-√7
  B) 4-√7
  C) 15+√7
  D) 7-√7
  Show Answer
  The correct answer is B .
• Question 1784: For which of the following exterior angles is a regular polygon possible? i. 36^o ii. 18^o iii. 15^o Options:
  A) i and ii
  B) ii only
  C) ii and iii
  D) iii only
  Show Answer
  The correct answer is C .
• Question 1785:

  Simplify 2log $\frac{2}{5}$ - log$\frac{72}{125}$ + log 9

  Options:
  A) 1 - 4 log3
  B) -1 + 2 log 3
  C) -1 + 5 log2
  D) 1 - 2log 2
  Show Answer
  The correct answer is D .
• Question 1786: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 1787: For what values of x is the curve y = $\frac{x^2+3}{x+4}$ decreasing?
  Options:
  A) -3 < x $\le$ 0
  B) -3 $\ge$ x < 0
  C) 0 < x < 3
  D) 0 $\le$ x $\le$ 3
  Show Answer
  The correct answer is D .
• Question 1788:

  

  In the figure above, PQR is a straight line segment, PQ = QT. Triangle PQT is an isosceles triangle, ∠SQR is 75${}^{\circ }$ and ∠QPT is 25${}^{\circ }$. Calculate the value of ∠RST.

  Options:
  A) 45${}^{\circ }$
  B) 55${}^{\circ }$
  C) 25${}^{\circ }$
  D) 50${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 1789:

  

  The mean and the range of the set of numbers 1, 20, 1.00, 0.90, 1.40, 0.80, 1.20 and 1.10 are me and r

  Options:
  A) 1.11
  B) 1.65
  C) 1.85
  D) 2.45
  Show Answer
  The correct answer is B .
• Question 1790: The median of a distribution can be estimated from Options:
  A) Barchart
  B) Cumulative frequency curve
  C) Frequency polygon
  D) Pictorial
  E) Pie chart
  Show Answer
  The correct answer is B .