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 1861: 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 1862: The distance between the point (4, 3) and the intersection of y = 2x + 4 and y = 7 - x is Options:
  A) $\sqrt{13}$
  B) $3\sqrt{2}$
  C) $\sqrt{26}$
  D) $10\sqrt{5}$
  Show Answer
  The correct answer is B .
• Question 1863:

  

  Use the cumulative frequency curve to answer the question.
  Estimate the median of the date represented on the graph.

  Options:
  A) 35.5
  B) 36.5
  C) 37.5
  D) 38.5
  Show Answer
  The correct answer is A .
• Question 1864: Multiply (x + 3y + 5) by (2x² + 5y + 2) Options:
  A) 2x² + 3yx² + 10xy + 15y² + 13y + 10x² + 2x + 10
  B) 2x³ + 6yx² + 5xy + 5y² + 31y + 5x² + 2x + 10
  C) 2x³ + 6xy² + 5xy + 15y² + 12y + 10x² + 2x = 10
  D) 2x² + 6xy² + 5xy + 15y² + 13y + 10x² + 2x + 10
  E) 2x³ + 2yx² + 10xy + 10y² + 31y + 5x² + 10
  Show Answer
  The correct answer is B .
• Question 1865: A hunter 1.6 m tall, views a bird on top of a tree at an angle of 45 degrees. if the distance between the hunter and the tree is 10.4 m, find the height of the tree. Options:
  A) 9.0 m
  B) 12. 0 m
  C) 8.8 m
  D) 10.4 m
  Show Answer
  The correct answer is B .
• Question 1866:

  If (x - a) is a factor of bx - ax + x², find the other factor.

  Options:
  A) (x + b)
  B) (x - b)
  C) (a + b)
  D) (a - b)
  Show Answer
  The correct answer is A .
• Question 1867: Solve the simultaneous linear equations: 2x + 5y = 11, 7x + 4y = 2 Options:
  A) x = -8, y = 1
  B) x = -2, y = 4
  C) x = $\frac{-34}{27}$, y = $\frac{73}{27}$
  D) x = 7, y = -9
  Show Answer
  The correct answer is C .
• Question 1868:

  Given the matrix $A=\left|\begin{array}{cc}3& -2\\ 1& 6\end{array}\right|$. Find the inverse of matrix A.

  Options:
  A) $\left|\begin{array}{cc}6& 2\\ 1& 6\end{array}\right|$
  B) $\left|\begin{array}{cc}\frac{2}{11}& \frac{1}{12}\\ \frac{3}{20}& \frac{1}{10}\end{array}\right|$
  C) $\left|\begin{array}{cc}-3& 2\\ -1& -6\end{array}\right|$
  D) $\left|\begin{array}{cc}\frac{3}{10}& \frac{1}{10}\\ \frac{-1}{20}& \frac{3}{20}\end{array}\right|$
  Show Answer
  The correct answer is D .
• Question 1869:

  If √(2x + 2) − √x = 1, find x.

  Options:
  A) x = 1 twice
  B) x = 0 or 1
  C) x = 3 or 1
  D) x = 2 twice
  Show Answer
  The correct answer is A .
• Question 1870: Evaluate $\frac{(18{)}^{\frac{3}{4}}-(27{)}^3}{3\times 2^3}$ Options:
  A) 27
  B) 1
  C) $\frac{1}{3}$
  D) $\frac{1}{8}$
  Show Answer
  The correct answer is B .