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 1741:

  

  The solution set of the shaded area above is

  Options:
  A) Y ≥ 0, y ≥ x and y + x ≤ 4
  B) Y ≤ x, y + x ≤ 4
  C) Y + x ≥ 4, y ≤ x
  D) Y ≤ x, y + x ≤ 4 and y ≥ 0
  Show Answer
  The correct answer is B .
• Question 1742:

  Evaluate $\frac{x{y}^2-x^{2}y}{x^2-x{y}^1}$, when x = -2 and y = 2

  Options:
  A) 3
  B) -$\frac{3}{5}$
  C) $\frac{3}{5}$
  D) -3
  Show Answer
  The correct answer is D .
• Question 1743: A man invests a sum of money at 4% per annum simple invest. After 3 years, the principal amounts to ₦7,000.00. Find the sum invested Options:
  A) ₦7,840
  B) ₦6,250.00
  C) ₦616.00
  D) ₦5,833.33
  Show Answer
  The correct answer is B .
• Question 1744: The number 25 when when converted from the tens and units base to the binary base (base two) is one of the following Options:
  A) 10011
  B) 111011
  C) 111000
  D) 11001
  E) 110011
  Show Answer
  The correct answer is D .
• Question 1745: If f (x) = 3x - 2, P = $\left(\begin{array}{cc}2& 1\\ -1& 0\end{array}\right)$ and I is 2 X 2 identity matrix, evaluate f(P) Options:
  A) $\left(\begin{array}{cc}6& 3\\ -3& 0\end{array}\right)$
  B) $\left(\begin{array}{cc}2& 0\\ 0& 2\end{array}\right)$
  C) $\left(\begin{array}{cc}8& 3\\ -3& 2\end{array}\right)$
  D) $\left(\begin{array}{cc}4& 3\\ -3& -2\end{array}\right)$
  Show Answer
  The correct answer is D .
• Question 1746: If 0.0000152 x 0.042 = A x 10⁸, where 1 $\le$ A < 10, find A and B. Options:
  A) A = 9, B = 6.38
  B) A = 6.38, B = -9
  C) A = -6.38, B = -9
  D) A = -9, B = -6.38
  Show Answer
  The correct answer is B .
• Question 1747:

  

  In the frustum of the cone, the top diagram is twice the bottom diameter. If the height of the frustum is h centimeters, find he height of the cone.

  Options:
  A) 2h
  B) 2$\pi$h
  C) $\pi$h
  D) $\frac{\pi h}{2}$
  Show Answer
  The correct answer is A .
• Question 1748: P varies directly as the square of Q and inversely as R. If P = 36, when Q = 3 and R = 4, find P when Q = 5 and R = 2. Options:
  A) 72
  B) 100
  C) 90
  D) 200
  E) 125
  Show Answer
  The correct answer is D .
• Question 1749: The ninary operation * is defined on the set of integers p and q by p*q = pq + p + q. Find 2 * (3 * 4). Options:
  A) 59
  B) 19
  C) 67
  D) 38
  Show Answer
  The correct answer is A .
• Question 1750:

  Find the compound interest (CI) on ₦15,700 for 2 years at 8% per annum compounded annually.

  Options:
  A) ₦6,212.48
  B) ₦2,834.48
  C) ₦18,312.48
  D) ₦2,612.48
  Show Answer
  The correct answer is D .