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 931: What are the factors of 2x² - xy - 3y² ? Options:
  A) (2x + 3y)(x + y)²
  B) (2x + 3y)(x + y)
  C) (2x + 3y)(x - y)
  D) (2x 3y)(x + y)
  E) (2x - 3y)(x - y)
  Show Answer
  The correct answer is D .
• Question 932: The formula Q = 1.5 + 0.5n gives the cost Q(in Naira)of feeding n people one additional person Options:
  A) 350k
  B) 200k
  C) 150k
  D) 50k
  Show Answer
  The correct answer is B .
• Question 933: The thickness of an 800 pages of book is 18mm. Calculate the thickness of one leaf of the book giving your answer in meters and in standard form Options:
  A) 2.25 x 10^-4m
  B) 50 x 10^-4m
  C) 2.25 x 10^-5m
  D) 4.50 x 10^-5m
  Show Answer
  The correct answer is C .
• Question 934: The ratio of the base area of a hollow cone to that of its curved surface is 1:4. If its base radius is 7cm, calculate the slant height of the cone Options:
  A) 7cm
  B) 22cm
  C) 28cm
  D) 49cm
  E) 154cm
  Show Answer
  The correct answer is C .
• Question 935: What is the product of 2x² − x + 1 and 3 − 2x Options:
  A) 4x³ − 8x² + 5x + 3
  B) −4x³ + 8x² − 5x + 3
  C) −4x³ − 8x² + 5x + 3
  D) 4x³ + 8x² − 5x + 3
  Show Answer
  The correct answer is B .
• Question 936: A steel ball of radius 1 cm is dropped into a cylinder of radius 2cm and height 4cm. If the cylinder is now filled with water, what is the volume of the water in the cylinder? Options:
  A) $\frac{44}{3}$$\pi$cm³
  B) 12$\pi$cm³
  C) $\frac{38}{3}$$\pi$cm³
  D) $\frac{40}{3}$$\pi$cm³
  E) $\frac{32}{33}$$\pi$cm³
  Show Answer
  The correct answer is A .
• Question 937:

  Musa borrows N10.00 at 2% per month simple interest and repays N8.00 after 4 months. How much does he still owe?

  Options:
  A) N10.80
  B) N10.67
  C) N2.80
  D) N2.67
  Show Answer
  The correct answer is C .
• Question 938: How many three-digit numbers can be formed from 32564 without repeating any of the digits? Options:
  A) 120
  B) 10
  C) 20
  D) 60
  Show Answer
  The correct answer is D .
• Question 939: In a right angled triangle, if tan $\theta$ = $\frac{3}{4}$. What is cos$\theta$ - sin$\theta$? Options:
  A) $\frac{2}{3}$
  B) $\frac{3}{5}$
  C) $\frac{1}{5}$
  D) $\frac{4}{5}$
  Show Answer
  The correct answer is C .
• Question 940: Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2950, find y. Options:
  A) 51
  B) 48
  C) 30
  D) 25
  E) 18
  Show Answer
  The correct answer is C .