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 1341: Find the sum of the range and the mode of the set of numbers 10, 9, 10, 9, 8, 7, 7, 10, 8, 10, 8, 4, 6, 9, 10, 9, 10, 9, 7, 10, 6, 5 Options:
  A) 16
  B) 14
  C) 12
  D) 10
  Show Answer
  The correct answer is A .
• Question 1342: Ice forms on a refrigerator ice box at rate of (4 - 0.61)g per minute after 1 minute. If initially, there were 2g of ice, find the mass of ice formed in 5 minutes. Options:
  A) 19.5
  B) 17.0
  C) 14.5
  D) 12.5
  Show Answer
  The correct answer is D .
• Question 1343: If P is a set of all prime factors of 30 and Q is a set of all factors of 18 less than 10, find P $\cap$ Q Options:
  A) {3}
  B) {2,3}
  C) {2,3,5}
  D) {1,2}
  Show Answer
  The correct answer is B .
• Question 1344: The solution of the quadratic equation bx² + cx + a = 0 is given by Options:
  A) x = b $\pm$ $\frac{\sqrt{b^2-4ac}}{2a}$
  B) x = c $\pm$ $\frac{\sqrt{b^2-4ab}}{2b}$
  C) x = -c $\pm$ $\frac{\sqrt{c^2-4ab}}{2b}$
  D) x = -b $\pm$ $\frac{\sqrt{b^2-4ac}}{2b}$
  Show Answer
  The correct answer is C .
• Question 1345: A cuboid has a diagonal of length 9cm and a square base of side 4cm. What is its height? Options:
  A) 9cm
  B) $\sqrt{65}$cm
  C) 4$\sqrt{2}$cm
  D) 7cm
  E) 6.5cm
  Show Answer
  The correct answer is B .
• Question 1346: Find the length of a side of a rhombus whose diagonals are 6cm and 8cm Options:
  A) 8cm
  B) 5cm
  C) 4cm
  D) 3cm
  Show Answer
  The correct answer is B .
• Question 1347:

  If two graphs y = px² + q and y = 2x² − 1 intersect at x =2, find the value of p in terms of q

  Options:
  A) q − $\frac{8}{7}$
  B) 7 − $\frac{q}{4}$
  C) 8 − $\frac{q}{2}$
  D) 7 + $\frac{q}{8}$
  Show Answer
  The correct answer is B .
• Question 1348: Find the minimum value of y = x² - 2x - 3 Options:
  A) 4
  B) 1
  C) -1
  D) -4
  Show Answer
  The correct answer is D .
• Question 1349: If y = x(x4 + x + 1), evaluate ∫${}_0^1$ ydx Options:
  A) $\frac{11}{12}$
  B) $\frac{11}{16}$
  C) $\frac{5}{6}$
  D) zero
  Show Answer
  The correct answer is D .
• Question 1350:

  $\begin{array}{ccccc}x& 2& 4& 6& 8\\ f& 4& y& 6& 5\end{array}$

  If the mean of the above frequency distribution is 5.2, find y

  Options:
  A) 2, 1
  B) 1, 2
  C) 1, 5
  D) 5, 2
  Show Answer
  The correct answer is C .