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 621: Simplify $\frac{x(x+1{)}^{\frac{1}{2}}-(x+1{)}^{\frac{1}{2}}}{(x+1{)}^{\frac{1}{2}}}$ Options:
  A) $\frac{-1}{x+1}$
  B) $\frac{1}{x+1}$
  C) $\frac{1}{x}$
  D) $\frac{1}{x-1}$
  Show Answer
  The correct answer is A .
• Question 622:

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

  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 623:

  Simplify $\sqrt[3]{(64r^6{)}^{\frac{1}{2}}}$

  Options:
  A) $\frac{r}{2}$
  B) 2r
  C) $\frac{1}{2r}$
  D) $\frac{2}{r}$
  E) 64r
  Show Answer
  The correct answer is E .
• Question 624: The solutions of x² - 2x - 1 = 0 are the points of intersection of two graphs. if one of the graphs is y = 2 + x - x², find the second graph Options:
  A) y = 1 - x
  B) y = 1 + x
  C) y = x - 1
  D) y = 3x + 3
  Show Answer
  The correct answer is A .
• Question 625: The first and last term of a linear sequence (AP) are 6 and 10 respectively. If the sum of the sequence is 40. Find the number of terms. Options:
  A) nth = 3
  B) nth = 4
  C) nth = 5
  D) nth = 6
  Show Answer
  The correct answer is C .
• Question 626: If tan $\theta$ = $\frac{m^2-n^2}{2mn}$ find sec$\theta$ Options:
  A) $\frac{m^2+n^2}{(m^2-n^2)}$
  B) $\frac{m^2+n^2}{2mn}$
  C) $\frac{mn}{2(m^2+n^2)}$
  D) $\frac{m^2{n}^2}{2(m^2-n^2)}$
  Show Answer
  The correct answer is B .
• Question 627:

  

  If the diagram is the graph of y = x², the shaded area is

  Options:
  A) 64 square units
  B) $\frac{126}{4}$ square units
  C) 32 square units
  D) $\frac{64}{3}$ square units
  Show Answer
  The correct answer is D .
• Question 628: Solve for x and y in the equations below
  x² - y² = 4
  x + y = 2 Options:
  A) x = 0, y = -2
  B) x = 0, y = 2
  C) x = 2, y = 0
  D) x = -2, y = 0
  Show Answer
  The correct answer is C .
• Question 629:

  

  The mean and the range of the set of numbers 1, 20, 1.00, 0.90, 1.40, 0.80, 1.20 and 1.10 are me and r

  Options:
  A) 1.11
  B) 1.65
  C) 1.85
  D) 2.45
  Show Answer
  The correct answer is B .
• Question 630: A man sells his new brand car for ₦420,000 at a gain of 15%. What did it cost him? Options:
  A) ₦410,000
  B) ₦365,217
  C) ₦157,250
  D) ₦257,000
  Show Answer
  The correct answer is B .