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 1361: If x₁₀ = 23₅. Find x Options:
  A) 15
  B) 12
  C) 14
  D) 13
  Show Answer
  The correct answer is D .
• Question 1362: If | 2 3 | = | 4 1 |. find the value of y. 7 Options:
  A) -6
  B) 6
  C) -12
  D) 12
  Show Answer
  The correct answer is A .
• Question 1363: If two fair coins are tossed, what is the probability of getting at least one head? Options:
  A) $\frac{1}{4}$
  B) $\frac{1}{2}$
  C) 1
  D) $\frac{43}{78}$
  E) $\frac{3}{4}$
  Show Answer
  The correct answer is E .
• Question 1364: If the heights of two circular cylinder are in the ratio 2 : 3 and their volumes? Options:
  A) 27 : 32
  B) 27 : 23
  C) 23 : 32
  D) 27 : 23
  Show Answer
  The correct answer is A .
• Question 1365: Factorize completely y³ -4xy + xy³ - 4y Options:
  A) (y + ay)(y + 2)(y - 2)
  B) (y - xy)(y - 2)
  C) y(1 + x)(y + 2)(y -2)
  D) y(1 - x)(y + 2)(y - 2)
  Show Answer
  The correct answer is C .
• Question 1366:

  Divide the expression x³ + 7x² - x - 7 by -1 + x²

  Options:
  A) -x³ + 7x² - x - 7
  B) -x³ = 7x + 7
  C) x - 7
  D) x + 7
  Show Answer
  The correct answer is D .
• Question 1367:

  What is the product of $\frac{27}{5}$, $(3{)}^{-3}$ and ($\frac{1}{5}{)}^{-1}$?

  Options:
  A) 5
  B) 3
  C) 1
  D) $\frac{1}{25}$
  Show Answer
  The correct answer is C .
• Question 1368: If the surface area of a sphere increased by 44%, find the percentage increase in diameter Options:
  A) 44
  B) 30
  C) 22
  D) 20
  Show Answer
  The correct answer is D .
• Question 1369:

  

  In the figure, STQ = SRP, PT = TQ = 6cm and QS = 5cm. Find SR

  Options:
  A) $\frac{47}{5}$
  B) 5
  C) $\frac{32}{5}$
  D) $\frac{22}{5}$
  Show Answer
  The correct answer is A .
• Question 1370:

  If $\text{N}=\left(\begin{array}{ccc}3& 5& -4\\ 6& -3& -5\\ -2& 2& 1\end{array}\right)$, find |N|.

  Options:
  A) 65
  B) 23
  C) 17
  D) 91
  Show Answer
  The correct answer is C .