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 1661:

  

  The grades A1, A2, A3, C4 and F earned by students in a particular course are shown in the pie chart. What percentage of the students obtained a C4 grade?

  Options:
  A) 52.0
  B) 43.2
  C) 40.0
  D) 12.0
  Show Answer
  The correct answer is D .
• Question 1662: Find the derivative of $y=\frac{x^7-x^5}{x^4}$ Options:
  A) x(x²-1)
  B) 3x(x²-1)
  C) 3x²-1
  D) 7x⁶-5x⁴
  Show Answer
  The correct answer is C .
• Question 1663: PQR is the diagram of a semicircle RSP with centre at Q and radius of length 3.5cm. If QPT = 60^o. Find the perimeter of the figure PTRS. $\pi$ = $\frac{22}{7}$ Options:
  A) 25cm
  B) 18cm
  C) 36cm
  D) 29cm
  E) 25.5cm
  Show Answer
  The correct answer is A .
• Question 1664: If cos $\theta$ = $\frac{x}{y}$, find cosec$\theta$ Options:
  A) $\frac{1}{y}$(x² + y²)
  B) $\frac{x}{y}$
  C) $\frac{1}{y}$$\sqrt{x^2+y^2}$
  D) $\frac{x-y}{y}$
  Show Answer
  The correct answer is C .
• Question 1665:

  Given that S and T are sets of real numbers such that S = {x : 0 $\le$ x $\le$ 5} and T = {x :− 2 < x < 3} Find S $\cup$ T

  Options:
  A) −3 < x < $\le$3
  B) −2< x < $\le$5
  C) 2< x < $\ge$ −5
  D) −1< x $\ge$ $\le$2
  Show Answer
  The correct answer is B .
• Question 1666:

  In a committee of 5, which must be selected from 4 males and 3 females. In how many ways can the members be chosen if it were to include 2 females?

  Options:
  A) 144 ways
  B) 15 ways
  C) 185 ways
  D) 12 ways
  Show Answer
  The correct answer is D .
• Question 1667: An arc subtends an angle of 50${}^{\circ }$ at the center of circle of radius 6cm. Calculate the area of the sector formed Options:
  A) ¹⁰⁰/₇
  B) ⁸⁰/₇
  C) ¹¹⁰/₇
  D) ⁹⁰/₇
  Show Answer
  The correct answer is C .
• Question 1668: In a basket of fruits, there are 6 grapes, 11 bananas and 13 oranges, if one fruit is chosen at random, what is the probability that the fruit is either a grape or a banana? Options:
  A) $\frac{17}{30}$
  B) $\frac{11}{30}$
  C) $\frac{6}{30}$
  D) $\frac{5}{30}$
  Show Answer
  The correct answer is A .
• Question 1669: The quantity y is partly constant and partly varies inversely as the square of x. With P and Q as constants, a possible relationship between x and y is Options:
  A) y = Q + $\frac{P}{x^2}$
  B) y = Q + px
  C) y = $\frac{PQ}{x^2}$
  D) y = Q - $\frac{P}{x^2}$
  Show Answer
  The correct answer is A .
• Question 1670: If Q is a factor of 18 and T is prime numbers between 2 and 18. What is Q$\cap$T? Options:
  A) (2,3)
  B) (2,3,18)
  C) (2,3,9)
  D) (2,3,6)
  Show Answer
  The correct answer is A .