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 1281: List the integral values of x which satisfy the inequality -1 < 5 - 2x $\ge$ 7. Options:
  A) -1, 0, 1, 2
  B) 0, 1, 2, 3
  C) -0, 1, 2, 3
  D) -1, 0, 2, 3
  Show Answer
  The correct answer is A .
• Question 1282: Find the sum to infinity of the series
  $\frac{1}{4}$, $\frac{1}{8}$, $\frac{1}{16}$,.......... Options:
  A) $\frac{1}{2}$
  B) $\frac{3}{5}$
  C) $\frac{-1}{5}$
  D) $\frac{73}{12}$
  Show Answer
  The correct answer is A .
• Question 1283: In base ten, the number 101101 (base 2) equals Options:
  A) 15
  B) 4
  C) 45
  D) 32
  E) 90
  Show Answer
  The correct answer is C .
• Question 1284: The area of a square is 144 sqcm. Find the length of the diagonal. Options:
  A) 13 cm
  B) 12√2 cm
  C) 12 cm
  D) 11√3 cm
  Show Answer
  The correct answer is B .
• Question 1285:

  If $6x^3+2x^2-5x+1$ divides $x^2-x-1$, find the remainder.

  Options:
  A) 9x + 9
  B) 2x + 6
  C) 6x + 8
  D) 5x - 3
  Show Answer
  The correct answer is A .
• Question 1286: Find $\frac{dy}{dx}$, if y = $\frac{2}{3}$ X³ - $\frac{4}{x}$ Options:
  A) 3x² - $\frac{4}{x}$
  B) 2x² +$\frac{4}{x^2}$
  C) 3x² + $\frac{4}{x^2}$
  D) 2x² - $\frac{4}{x}$
  Show Answer
  The correct answer is B .
• Question 1287:

  Two dice are tossed. What is the probability that the total score is a prime number.

  Options:
  A) $\frac{5}{12}$
  B) $\frac{5}{9}$
  C) $\frac{1}{6}$
  D) $\frac{1}{3}$
  Show Answer
  The correct answer is A .
• Question 1288: 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 1289:

  

  PQ and PR are tangents from P to a circle centre O as shown in the figure. If QRP = 34${}^{\circ }$, find the angle marked x

  Options:
  A) 34${}^{\circ }$
  B) 56${}^{\circ }$
  C) 68${}^{\circ }$
  D) 112${}^{\circ }$
  Show Answer
  The correct answer is C .
• Question 1290:

  

  The diagram is a circle with centre O. Find the area of the shaded portion.

  Options:
  A) 9($\pi -2)c{m}^2$
  B) 18$\pi c{m}^2$
  C) 9$\pi c{m}^2$
  D) 36$\pi c{m}^2$
  Show Answer
  The correct answer is A .