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 1251: Find the number of committees of three that can be formed consisting of two men and one woman from four men and three women Options:
  A) 3
  B) 6
  C) 18
  D) 24
  Show Answer
  The correct answer is C .
• Question 1252:
  

  Use the quadratic equation curve to answer this question.

  What is the 80th percentile?

  Options:
  A) -5.3
  B) 0.5
  C) 3
  D) 8
  Show Answer
  The correct answer is A .
• Question 1253:

  Evaluate ∫${}_1^2$ $\frac{5}{x}$ dx

  Options:
  A) 1.47
  B) 2.67
  C) 3.23
  D) 3.47
  Show Answer
  The correct answer is D .
• Question 1254: Express $\frac{1}{X^3-1}$ in partial fractions Options:
  A) 1/3{(1/x-1)-(x-2/x²-x+1)}
  B) 1/3{(1/x-1)-(x+2/x²+x+1)}
  C) 1/3{(1/x-1)-(x-2/x²+x+1)}
  D) 1/3{(1/x-1)-(x-2/x²-x-1)}
  Show Answer
  The correct answer is B .
• Question 1255: If tan $\theta$ = $\frac{5}{4}$ find sin²$\theta$ - cos²$\theta$ Options:
  A) $\frac{9}{41}$
  B) $\frac{5}{4}$
  C) 1
  D) $\frac{9}{1}$
  Show Answer
  The correct answer is A .
• Question 1256:

  

  The bar chart above shows the number of times the word a, and , in, it, the , to appear in a paragraph in a book. What is the ratio of the least frequent word?

  Options:
  A) ¹/₄
  B) ¹/₃
  C) ²/₃
  D) ³/₄
  Show Answer
  The correct answer is A .
• Question 1257:

  If $-2x^3+6x^2+17x$ - 21 is divided by $(x+1)$, then the remainder is

  Options:
  A) 32
  B) 30
  C) -30
  D) -32
  Show Answer
  The correct answer is C .
• Question 1258: x varies directly as y and inversely as z. when x = 5, y = 2 and z = 1. What is the value of x when y = 5 and z = 2? Options:
  A) 2.5
  B) 5
  C) 6.25
  D) 6.52
  E) 7.5
  Show Answer
  The correct answer is C .
• Question 1259: The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone Options:
  A) 7cm
  B) 22cm
  C) 28cm
  D) 49cm
  E) 154cm
  Show Answer
  The correct answer is C .
• Question 1260: 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 .