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 1951: Simplify T = $\frac{4R_2}{R_1^{-1}+R_2^{-1}+4R_3^{-1}}$ Options:
  A) $\frac{4R_1\times R_2{R}_3}{R_2{R}_3+R_1{R}_3+4R_1{R}_2}$
  B) $\frac{R_1{R}_2{R}_3}{R_2{R}_3+R_1{R}_2+4R_1{R}_2}$
  C) $\frac{16R_1{R}_2{R}_3}{R_2{R}_3+R_1{R}_2+R_1{R}_2}$
  D) $\frac{4R_1{R}_2{R}_3}{4R_2{R}_3+R_1{R}_2+4R_1{R}_2}$
  Show Answer
  The correct answer is A .
• Question 1952: A bag contains 16 red balls and 20 blue balls only. How many white balls must be added to the bag so that the probability of randomly picking a red ball is equal to $\frac{2}{5}$ Options:
  A) 4
  B) 20
  C) 24
  D) 40
  Show Answer
  The correct answer is A .
• Question 1953:

  Without using tables, evaluate (343)^1/3 x (

  0.14)^-1 x (25)^-1/2

  Options:
  A) 10
  B) 12
  C) 8
  D) 7
  Show Answer
  The correct answer is A .
• Question 1954:

  Find the value of $\frac{(0.5436{)}^3}{0.017\times 0.219}$ to 3 significant figures.

  Options:
  A) 46.2
  B) 43.1
  C) 534
  D) 431
  Show Answer
  The correct answer is B .
• Question 1955:

  Evaluate ${\int }_{-1}^1$(2x + 1)²dx

  Options:
  A) 3$\frac{2}{3}$
  B) 4
  C) 4$\frac{1}{3}$
  D) 4$\frac{2}{3}$
  Show Answer
  The correct answer is D .
• Question 1956: Find P if $\frac{x-3}{(1-x)(x+2)}$ = $\frac{p}{1-x}$ + $\frac{Q}{x+2}$ Options:
  A) $\frac{-2}{3}$
  B) $\frac{-5}{3}$
  C) $\frac{5}{3}$
  D) $\frac{2}{3}$
  Show Answer
  The correct answer is A .
• Question 1957: An open rectangular box externally measures 4m x 3m x 4m. Find the total cost of painting the box externally if it costs ₦2.00 to paint one square meter Options:
  A) ₦96.00
  B) ₦112.00
  C) ₦136.00
  D) ₦160.00
  Show Answer
  The correct answer is B .
• Question 1958: Factorize completely ac - 2bc - a + 4b² Options:
  A) (a - 2b)(c - a - 2b)
  B) (a - 2b)(c + a +2b)
  C) (a - 2b)(c - a + 2b)
  D) (a - 2b)(c + a - 2b)
  Show Answer
  The correct answer is A .
• Question 1959: Factorize completely x² + 12xy + y + 3x + 3y - 18 Options:
  A) (x + y + 6)(x + y -3)
  B) (x - y - 6)(x - y + 3)
  C) (x - y + 6)(x - y - 3)
  D) (x + y - 6)(x + y + 3)
  Show Answer
  The correct answer is A .
• Question 1960: Given that cos z = L , whrere z is an acute angle, find an expression for $\frac{\text{cot z - cosec z}}{\text{sec z + tan z}}$ Options:
  A) $\frac{1-L}{1+L}$
  B) $\frac{L^2\sqrt{3}}{1+L}$
  C) $\frac{1+L^3}{L^2}$
  D) $\frac{L(L-1)}{1-L+1\sqrt{1-L^2}}$
  Show Answer
  The correct answer is D .