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 1511: Evaluate $\frac{(0.5625{)}^2-(0.4375{)}^2}{0.04}$ Options:
  A) 0.131
  B) 3.11
  C) 3.12
  D) 3.13
  Show Answer
  The correct answer is D .
• Question 1512:

  If $\text{N}=\left(\begin{array}{ccc}3& 5& -4\\ 6& -3& -5\\ -2& 2& 1\end{array}\right)$, find |N|.

  Options:
  A) 65
  B) 23
  C) 17
  D) 91
  Show Answer
  The correct answer is C .
• Question 1513:

  A man invested a sum of ₦280.00 partly at 5% and partly at 4%. if the total interest is ₦12.90 per annum, find the amount invested at 5%.

  Options:
  A) 14.00
  B) 120.00
  C) 140.00
  D) 160.00
  Show Answer
  The correct answer is D .
• Question 1514: A cuboid has a diagonal of length 9cm and a square base of side 4cm. What is its height? Options:
  A) 9cm
  B) 65cm
  C) 42cm
  D) 7cm
  E) 6.5cm
  Show Answer
  The correct answer is D .
• Question 1515: A number is chosen at random from 10 to 30 both inclusive. What is the probability that the number is divisible by 3? Options:
  A) $\frac{2}{15}$
  B) $\frac{1}{10}$
  C) $\frac{1}{3}$
  D) $\frac{2}{5}$
  Show Answer
  The correct answer is C .
• Question 1516: If 27^{x + 2} $÷$ 9^{x + 1} = 3^2x, find x Options:
  A) 3
  B) 4
  C) 5
  D) 6
  Show Answer
  The correct answer is B .
• Question 1517: In a class of 40 students, 32 offer mathematics, 24 offer Physics, and 4 offer neither Mathematics nor Physics. How many offer both Mat
  ematics and Physics? Options:
  A) 20
  B) 16
  C) 8
  D) 4
  Show Answer
  The correct answer is A .
• Question 1518:

  A solid hemisphere has a radius of 7 cm. Find the total surface area.

  Options:
  A) 400 cm²
  B) 462 cm²
  C) 66 cm²
  D) 308 cm²
  Show Answer
  The correct answer is B .
• Question 1519: Solve for (x, y) in the equation 2x + y = 4: x^2 + xy = -12 Options:
  A) (6, -8): (-2, 8)
  B) (3, -4): (-1, 4)
  C) (8, -4): (-1, 4)
  D) (-8, 6): (8, -2)
  E) (-4, 3): (4, -1)
  Show Answer
  The correct answer is A .
• Question 1520: Factorize k² - 2kp + p². Options:
  A) (k +p)²
  B) (k - p)²
  C) k² + p²
  D) k² - p²
  Show Answer
  The correct answer is B .