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 1211: Make F the subject of the formula t = $\sqrt{\frac{v}{\frac{1}{f}+\frac{1}{g}}}$ Options:
  A) $\frac{gv-t^2}{g{t}^2}$
  B) $\frac{g{t}^2}{gv-t^2}$
  C) $\frac{v}{\frac{1}{t^2}-\frac{1}{g}}$
  D) $\frac{gv}{t^2-g}$
  Show Answer
  The correct answer is B .
• Question 1212: In a class of 46 students, 22 play football and 26 play volleyball. If 3 students play both games, how many play neither? Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is A .
• Question 1213:

  Find the derivativeof the function y = 2x${}^2$(2x - 1) at the point x = -1?

  Options:
  A) 18
  B) 16
  C) -4
  D) -6
  Show Answer
  The correct answer is B .
• Question 1214: Find n if 34_n = 10011₂ Options:
  A) 5
  B) 6
  C) 7
  D) 8
  Show Answer
  The correct answer is A .
• Question 1215: Simplify 2log $\frac{2}{5}$ - log$\frac{72}{125}$ + log 9 Options:
  A) 1 - 4 log3
  B) -1 + 2 log 3
  C) -1 + 5 log2
  D) 1 - 2log 2
  Show Answer
  The correct answer is D .
• Question 1216: What is the mean deviation 0f 3, 5, 8, 11, 12 and 21? Options:
  A) 37
  B) 60
  C) 10
  D) 4.7
  Show Answer
  The correct answer is D .
• Question 1217: Factorize abx² + 8y - 4bx - 2axy Options:
  A) (ax - 4)(bx - 2y)
  B) (ax + b)(x - 8y)
  C) (ax - 2y)(bx - 4)
  D) (bx - 4)(ax - 2y)
  E) (abx - 4)(x - 2y)
  Show Answer
  The correct answer is A .
• Question 1218:

  $\begin{array}{ccccccc}\text{Numbers}& 1& 2& 3& 4& 5& 6\\ \text{Frequency}& 18& 22& 20& 16& 10& 14\end{array}$

  The table above represents the outcome of throwing a die 100 times. What is the probability of obtaining at least a 4?

  Options:
  A) $\frac{1}{5}$
  B) $\frac{1}{2}$
  C) $\frac{2}{5}$
  D) $\frac{3}{4}$
  Show Answer
  The correct answer is C .
• Question 1219: Find the standard deviation of 2, 3, 5 and 6 Options:
  A) √6
  B) √10
  C) √$\frac{2}{5}$
  D) √$\frac{5}{2}$
  Show Answer
  The correct answer is D .
• Question 1220:

  Evaluate $\frac{0.8\times 0.43\times 0.031}{0.05\times 0.72\times 0.021}$ correct to four significant figures.

  Options:
  A) 14.09
  B) 14.1
  C) 14.12
  D) 14.11
  Show Answer
  The correct answer is D .