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 1411: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 1412: After what length of time will N2400.00 yield an interest of N60.00 at 1$\frac{1}{2}$% per annum? Options:
  A) 2$\frac{4}{5}$ years
  B) 1$\frac{2}{3}$ years
  C) 1$\frac{1}{2}$ years
  D) 1 years
  E) $\frac{3}{5}$ year
  Show Answer
  The correct answer is B .
• Question 1413: If the shadow of a pole 7m high is 1/2 its length what is the angle of elevation of the sun, correct to the nearest degree? Options:
  A) 90^o
  B) 63^o
  C) 60^o
  D) 26^o
  E) 0^o
  Show Answer
  The correct answer is B .
• Question 1414:

  A room is12m long, 9m wide and 8m high. Find the cosine of the angle which a diagonal of the room makes with the floor of the room

  Options:
  A) $\frac{15}{17}$
  B) $\frac{8}{17}$
  C) $\frac{8}{15}$
  D) $\frac{12}{17}$
  Show Answer
  The correct answer is A .
• Question 1415:

  At what points does the straight line y = 2x + 1 intersect the curve y = 2x² + 5x - 1?

  Options:
  A) (-2, -3) and($\frac{1}{2}$, 2)
  B) (1, 0), (1, 3)
  C) (4, 0) and (0,1)
  D) 2, 0) and (0,1)
  Show Answer
  The correct answer is A .
• Question 1416: Construct a quadratic equation whose roots are -$\frac{3}{2}$ and 7 Options:
  A) 3x² + 11x + 21 = 0
  B) 2x² + 11x + 21 = 0
  C) 2x² - 11x – 21 = 0
  D) 3x² - 11x - 21 = 0
  E) x² - 11x – 21 = 0
  Show Answer
  The correct answer is C .
• Question 1417:

  $\begin{array}{cccccc}\text{Marks}& 1& 2& 3& 4& 5\\ \text{Frequency}& 2& 2& 8& 4& 4\end{array}$

  The table above shows the marks obtained in a given test. Find the mean mark.

  Options:
  A) 3.1
  B) 3.0
  C) 3.3
  D) 3.2
  Show Answer
  The correct answer is C .
• Question 1418: 2 bags of sugar at N_x per bag are mixed with 3 bags of sugar at N_y per bag. What is the cost in N of the mixture per bag? Options:
  A) $\frac{(2x+3y)}{5}$
  B) $\frac{(x+y)}{2}$
  C) $\frac{x}{2}+\frac{y}{3}$
  D) $\frac{(x+y)}{5}$
  E) $\frac{(3x+2y)}{5}$
  Show Answer
  The correct answer is A .
• Question 1419: Calculate the area of a parallelogram whose diagonals are of length 8cm and 12cm and intersect at an angle of 135° Options:
  A) 271.5cm²
  B) 135.8cm²
  C) 96.0cm²
  D) 48.0cm²
  E) 33.9cm²
  Show Answer
  The correct answer is E .
• Question 1420: An arc of the length 16$\pi$cm subtends an angle of 80^o at the centre of the circle. Find the radius of the circle. Options:
  A) 24cm
  B) 28cm
  C) 36cm
  D) 32cm
  Show Answer
  The correct answer is C .