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 331: Simplify √30 × √40 Options:
  A) 10 √3
  B) 5 √3
  C) 20 √3
  D) 15 √3
  Show Answer
  The correct answer is C .
• Question 332: Find the mean of the following 24.57, 25.63, 24.32, 26.01, 25.77 Options:
  A) 25.12
  B) 25.30
  C) 25.26
  D) 25.50
  E) 25.75
  Show Answer
  The correct answer is C .
• Question 333:

  

  The diagram is a circle with centre O. Find the area of the shaded portion.

  Options:
  A) 9($\pi -2)c{m}^2$
  B) 18$\pi c{m}^2$
  C) 9$\pi c{m}^2$
  D) 36$\pi c{m}^2$
  Show Answer
  The correct answer is A .
• Question 334: The 3rd term of an A.P is 4x - 2y and the 9th term is 10x - 8y. Find the common difference. Options:
  A) 19x - 17y
  B) 8x - 4y
  C) x - y
  D) 2x
  Show Answer
  The correct answer is C .
• Question 335: If 5^{(x + 2y)} = 5 and 4^{(x + 3y)} = 16, find 3^{(x + y)} Options:
  A) 7
  B) 1
  C) 3
  D) 27
  Show Answer
  The correct answer is B .
• Question 336: In a class of 150 students, the sector in a pie chart representing the students offering Physics has angle 12^o. How many students are offering Physics? Options:
  A) 18
  B) 15
  C) 10
  D) 5
  Show Answer
  The correct answer is D .
• Question 337:

  Find the missing value in the following table:

  $\begin{array}{ccccccc}x& -2& -1& 0& 1& 2& 3\\ y=x^3-x+3& & 3& 3& 3& 9& 27\end{array}$

  Options:
  A) -3
  B) 3
  C) -9
  D) 13
  E) 9
  Show Answer
  The correct answer is A .
• Question 338: In a school, there are 35 students in Class 2A and 40 in class 2B. The mean score for class 2A in an English literature examination is 60.0 and that for 2B in the same paper is 52.5. Find to one place of decimals, the mean for the combined classes. Options:
  A) 1.5
  B) 56.0
  C) 56.2
  D) 56.3
  E) 56.5
  Show Answer
  The correct answer is B .
• Question 339: Make R the subject of the fomula S = $\sqrt{\frac{2R+T}{2RT}}$ Options:
  A) R = $\frac{T}{(T{S}^2+1)}$
  B) R = $\frac{T}{2(T{S}^2-2)}$
  C) R = $\frac{T}{2(T{S}^2+1)}$
  D) R = $\frac{R}{2(T{S}^2+1)}$
  Show Answer
  The correct answer is B .
• Question 340:

  

  In the venn diagram, the shaded region is

  Options:
  A) (P $\cap$ Q) $\cup$ R
  B) (P $\cap$ Q) $\cap$ R
  C) (P $\cap$ Q¹) $\cap$ R
  D) (P $\cap$ Q¹) $\cup$ R
  Show Answer
  The correct answer is C .