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 1041: Find the remainder when X³ - 2X² + 3X - 3 is divided by X² + 1 Options:
  A) 2X - 1
  B) X + 3
  C) 2X + 1
  D) X - 3
  Show Answer
  The correct answer is A .
• Question 1042: The inverse of matrix N = $\left|\begin{array}{cc}2& 3\\ 1& 4\end{array}\right|$ is Options:
  A) $\frac{1}{5}$ $\left|\begin{array}{cc}2& 1\\ 3& 4\end{array}\right|$
  B) $\frac{1}{5}$ $\left|\begin{array}{cc}4& -3\\ -1& 2\end{array}\right|$
  C) $\frac{1}{5}$ $\left|\begin{array}{cc}2& -1\\ -3& 4\end{array}\right|$
  D) $\frac{1}{5}$ $\left|\begin{array}{cc}4& 3\\ 1& 2\end{array}\right|$
  Show Answer
  The correct answer is B .
• Question 1043: The arithmetic mean of the ages of 30 pupils in a class is 15.3 years. One boy leaves the class and one girl is enrolled, and the new average age of 30 pupils in the class becomes 15.2 years. How much older is the boy than the girl?
  Options:
  A) 30 years
  B) 6 years
  C) 9 years
  D) 3 years
  E) 1 year
  Show Answer
  The correct answer is D .
• Question 1044:

  The third term of an A.P is 6 and the fifth term is 12. Find the sum of its first twelve terms

  Options:
  A) 201
  B) 144
  C) 198
  D) 72
  Show Answer
  The correct answer is C .
• Question 1045: Using the graph find the values of p and q if px + qy $\ge$ 4 Options:
  A) p = 2, q = -1
  B) p = -1, q = 2
  C) p = 2, q = 2
  D) p = 1, q = 2
  Show Answer
  The correct answer is B .
• Question 1046:

  If $\left[\begin{array}{cc}x& 3\\ 2& 7\end{array}\right]$= 15, find the value of x.

  Options:
  A) 3
  B) 4
  C) 5
  D) 2
  Show Answer
  The correct answer is A .
• Question 1047: Suppose x varies inversely as y, y varies directly as the square of t and x = 1, when 1 = 3. Find x when t = $\frac{1}{3}$ Options:
  A) 81
  B) 27
  C) $\frac{1}{9}$
  D) $\frac{1}{27}$
  E) $\frac{1}{81}$
  Show Answer
  The correct answer is E .
• Question 1048: A man kept 6 black, 5 brown and 7 purple shirts in a drawer. What is the probability of his picking a purple shirt with his eyes closed? Options:
  A) $\frac{1}{7}$
  B) $\frac{11}{18}$
  C) $\frac{7}{18}$
  D) $\frac{7}{11}$
  Show Answer
  The correct answer is C .
• Question 1049: A man is paid r naira per hour for normal work and double rate for overtime. if he does a 35-hour week which includes q hours of overtime, what is his weekly earning in naira? Options:
  A) r(35 + q)
  B) q(35r - q)
  C) q(35 + r)
  D) r(35 + 2q)
  Show Answer
  The correct answer is D .
• Question 1050:

  

  From the venn diagram above, the complement of the set P$\cap$Q is given by

  Options:
  A) {a, b, d, e}
  B) {b, d}
  C) {a, e}
  D) {c}
  Show Answer
  The correct answer is D .