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 411:

  A wire was shaped to form a square of area 81cm². An equilateral triangle was formed by the same wire,What is the length of a side of the triangle formed?

  Options:
  A) 3cm
  B) 6cm
  C) 9cm
  D) 12cm
  E) 27cm
  Show Answer
  The correct answer is D .
• Question 412: A solid cylinder of radius 3cm has a total surface area of 36$\pi$cm². Find its height Options:
  A) 2cm
  B) 3cm
  C) 4cm
  D) 5cm
  E) 6cm
  Show Answer
  The correct answer is B .
• Question 413: If two angles of a triangle are 30^o each and the longest side is 10cm. Calculate the length of each of the other sides Options:
  A) 5cm
  B) 4cm
  C) 3√3 cm
  D) 10$\frac{3}{3}$cm
  Show Answer
  The correct answer is D .
• Question 414: The sum of the interior angles of a polygon is 20 right angles. How many sides does the polygon have? Options:
  A) 12
  B) 20
  C) 40
  D) 10
  Show Answer
  The correct answer is A .
• Question 415: The number of telephone calls N between two cities A and B varies directly as the population P_A, P_B respectively and inversely as the square of the distance D between A and B. Which of the following equations represents this relation? Options:
  A) N = $\frac{k{p}_A}{D^2}+c{p}_B{D}^2$
  B) N = $\frac{k{p}_A{P}_B}{D^2}$
  C) N = $\frac{k{D}_A{P}_D}{B^2}$
  D) N = $\frac{k{D}_A^2{P}_D}{B}$
  Show Answer
  The correct answer is B .
• Question 416: If x + $\frac{1}{x}$ = 4, find x² + $\frac{1}{x^2}$ Options:
  A) 16
  B) 14
  C) 12
  D) 9
  Show Answer
  The correct answer is B .
• Question 417: Udoh deposited ₦150.00 in the bank. At the end of 5 years the simple interest on the principal was ₦55.00. At what rate per annum was the interest paid? Options:
  A) 11%
  B) 7$\frac{1}{3}$%
  C) 5
  D) 3$\frac{1}{2}$%
  Show Answer
  The correct answer is B .
• Question 418: The chances of Usman and Dele passing a Mathematics test are 12 and 13 respectively. What is the probability that neither of them passes the test? Options:
  A) $\frac{3}{5}$
  B) $\frac{2}{5}$
  C) $\frac{4}{15}$
  D) $\frac{1}{5}$
  E) $\frac{2}{15}$
  Show Answer
  The correct answer is C .
• Question 419:

  

  Use the graph of the curve y = f(x)to solve the inequality f(x) $\le$ 0

  Options:
  A) -1 $\ge$ x $\ge$ 1, x $\ge$ 2
  B) x $\le$ -1, 1 $\ge$ x $\ge$ 2
  C) x $\ge$ -1, 1 $\ge$ x $\ge$ 2
  D) x $\ge$ 2, -1 $\ge$ x $\ge$ 1
  Show Answer
  The correct answer is B .
• Question 420:

  Given U = {x is a positive integer less than 15} and P = {x is even number from 1 to 14}. Find the compliment.

  Options:
  A) {1, 3, 5, 7, 9, 11, 13, 15}
  B) {2, 3, 5, 7, 9, 11, 13}
  C) {1, 3, 5, 7, 9, 11, 13}
  D) {2, 3, 5, 7, 11, 15}
  Show Answer
  The correct answer is C .