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 1141: If $\frac{(2\sqrt{3}-\sqrt{2})}{(\sqrt{3}+2\sqrt{2})}=m+n\sqrt{6}$, find the values of m and n respectively. Options:
  A) 1, -2
  B) -2, 1
  C) $\frac{-2}{5}$, 1
  D) 2, 3/5
  Show Answer
  The correct answer is B .
• Question 1142: Find the variance of 2x, 2x-1 and 2x+1 Options:
  A) 2/3
  B) 2
  C) √(2/3)
  D) 1
  Show Answer
  The correct answer is A .
• Question 1143: A car dealer bought a second-hand car for ₦250,000 and spent ₦70,000 refurbishing it. He then sold the car for ₦400,000. What is the percentage gain? Options:
  A) 60%
  B) 32%
  C) 25%
  D) 20%
  Show Answer
  The correct answer is C .
• Question 1144:

  

  In the diagram, the base diameter is 14cm while the height is 12cm. Calculate the total surface area if the cylinder has both a base and a top.[$\pi \frac{22}{7}$]

  Options:
  A) 836cm²
  B) 308cm²
  C) 528cm²
  D) 154cm²
  Show Answer
  The correct answer is A .
• Question 1145: The sum of the first n terms of the arithmetic progression 5, 11, 17, 23, 29, 35, ... is Options:
  A) n(3n - 0.5)
  B) n(3n + 2)
  C) n(3n + 2.5)
  D) n(3n + 5)
  Show Answer
  The correct answer is B .
• Question 1146: If ₦560.70 is shared in the ratio 7 : 2 : 1, what is the smallest share? Options:
  A) ₦392.49
  B) ₦56.70
  C) ₦113.40
  D) ₦112.14
  E) ₦56.07
  Show Answer
  The correct answer is E .
• Question 1147: A pipe made of metal 10cm thick has an external radius of 11cm. find the area of metal in making 2.4cm of pipe Options:
  A) 21πcm²
  B) 21πcm²
  C) 15πcm²
  D) 17πcm²
  Show Answer
  The correct answer is B .
• Question 1148: What is the common ratio of the G.P. $(\sqrt{10}+\sqrt{5})+(\sqrt{10}+2\sqrt{5})+...$? Options:
  A) $\sqrt{2}$
  B) $\sqrt{5}$
  C) 3
  D) 5
  Show Answer
  The correct answer is A .
• Question 1149: Find the value of k if the expression kx³ + x² - 5x - 2 leaves a remainder 2 when it is divided by 2x + 1 Options:
  A) 10
  B) 8
  C) -10
  D) -8
  Show Answer
  The correct answer is C .
• Question 1150:

  

  Determine the value of x in the figure.

  Options:
  A) 134${}^{\circ }$
  B) 81${}^{\circ }$
  C) 53${}^{\circ }$
  D) 46${}^{\circ }$
  Show Answer
  The correct answer is A .