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 271:

  Evaluate $\frac{5}{8}-\frac{3}{4}÷\frac{5}{12}\times \frac{1}{4}$

  Options:
  A) - $\frac{3}{40}$
  B) $\frac{3}{40}$
  C) $\frac{7}{40}$
  D) -$\frac{263}{40}$
  Show Answer
  The correct answer is C .
• Question 272: 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 273: Simplify (25)^-1/₂ x (27)¹/₃ + (121)^-1/₂ x (625)^-1/₄ Options:
  A) ³⁴/₅₅
  B) ⁹/₁₁
  C) ¹⁴/₅
  D) ³/₂₇₅
  Show Answer
  The correct answer is A .
• Question 274:

  How many sides has a regular polygon whose interior angles are 120° each?

  Options:
  A) 4
  B) 5
  C) 6
  D) 3
  Show Answer
  The correct answer is C .
• Question 275: The mean of 2-t, 4+t, 3-2t, 2+t and t-1 is Options:
  A) 2
  B) t
  C) -t
  D) -2
  Show Answer
  The correct answer is A .
• Question 276:

  Integrate $\int (4x^{-3}-7x^2+5x-6)\mathrm{d}x$.

  Options:
  A) $-2x^{-2}-\frac{7}{3}{x}^3+\frac{5}{2}{x}^2-6x$
  B) $2x^2+\frac{7}{3}{x}^3-5x+6$
  C) $12x^2+14x-5$
  D) $-12x^{-4}-14x+5$
  Show Answer
  The correct answer is A .
• Question 277:

  

  The diagram above is the graph of the function f(x). Determined the range of values of x for which f(x) $\le$ 0

  Options:
  A) x $\le$ 2
  B) 0 $\le$ x $\le$ 2
  C) -2 $\le$ x $\le$ 0, x $\ge$ 2
  D) x $\le$ -2, 0 $\le$ x $\le$ 2
  Show Answer
  The correct answer is C .
• Question 278: The probability that a student passes a physics test is $\frac{2}{3}$. If he takes three physics tests, what is the probability that he passes two of the tests? Options:
  A) $\frac{2}{27}$
  B) $\frac{3}{27}$
  C) $\frac{4}{27}$
  D) $\frac{5}{3}$
  Show Answer
  The correct answer is C .
• Question 279:

  Differentiate $\frac{2x}{\sin x}$ with respect to x.

  Options:
  A) $2\cot x\sec x(1+\tan x)$
  B) $2\csc x-x\cot x$
  C) $2x\csc x+\tan x$
  D) $2\csc x(1-x\cot x)$
  Show Answer
  The correct answer is D .
• Question 280: In a town of 6250 inhabitants, there were 62 births during 1984. Find the percentage birth rate. Options:
  A) 3%
  B) 1.0%
  C) 2.5%
  D) 5.40%
  Show Answer
  The correct answer is B .