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: Bola choose at random a number between 1 and 300. What is the probability that the number is divisible by 4? Options:
  A) $\frac{1}{4}$
  B) $\frac{4}{4}$
  C) $\frac{6}{4}$
  D) $\frac{7}{4}$
  Show Answer
  The correct answer is A .
• Question 1862: Solve the inequalities for which $\frac{x+4}{3}-\frac{x-3}{2}<4$. Options:
  A) x < 7
  B) x > -7
  C) x < -7
  D) x > 7
  Show Answer
  The correct answer is B .
• Question 1863:

  

  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 1864: The graph of cumulative frequency distribution is known as Options:
  A) an ogive
  B) a histogram
  C) a frequency polygon
  D) relative frequency
  E) none
  Show Answer
  The correct answer is A .
• Question 1865: What is the total surface area of a cylinder with radius 2cm and height 1.5cm, correct to 2 significant figures? Options:
  A) 440cm${}^2$
  B) 220cm${}^2$
  C) 88cm${}^2$
  D) 44cm${}^2$
  E) 22cm${}^2$
  Show Answer
  The correct answer is D .
• Question 1866:

  

  In the diagram. Find h

  Options:
  A) $\frac{12}{7}$cm
  B) $\frac{12}{7}\sqrt{6}$cm
  C) $\frac{7}{12}$cm
  D) $\frac{1}{2}$cm
  Show Answer
  The correct answer is B .
• Question 1867:

  

  In the diagram above, find the value of x

  Options:
  A) 55${}^{\circ }$
  B) 50${}^{\circ }$
  C) 45${}^{\circ }$
  D) 40${}^{\circ }$
  Show Answer
  The correct answer is C .
• Question 1868:

  Factorize completely 81a${}^4$ - 16b${}^4$

  Options:
  A) (3a + 2b)(2a - 3b)(9a² + 4b²)
  B) (3a - 2b)(2a - 3b)(4a² - 9b²)
  C) (3a - 2b)(3a + 2b)(9a² + 4b²)
  D) (6a - 2b)(8a - 3b)(4a³ - 9b²)
  Show Answer
  The correct answer is C .
• Question 1869:

  If P varies inversely as the square root of q, where p = 3 and q = 16, find the value of q when p = 4.

  Options:
  A) 12
  B) 8
  C) 9
  D) 16
  Show Answer
  The correct answer is C .
• Question 1870: The arithmetic mean of the ages of 30 pupils in a class is 15.3 years. One boy leaves the class and one girl is enrolled, and the new average age of 30 pupils in the class becomes 15.2 years. How much older is the boy than the girl?
  Options:
  A) 30 years
  B) 6 years
  C) 9 years
  D) 3 years
  E) 1 year
  Show Answer
  The correct answer is D .