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 1511: If x varies directly as square root of y and x = 81 when y = 9, Find x when y = 1$\frac{7}{9}$ Options:
  A) 20$\frac{1}{4}$
  B) 27
  C) 2$\frac{1}{4}$
  D) 36
  Show Answer
  The correct answer is D .
• Question 1512: If $\frac{3e+f}{3f-e}$ = $\frac{2}{5}$, find the value of $\frac{e+3f}{f-3e}$ Options:
  A) $\frac{5}{2}$
  B) 1
  C) $\frac{26}{7}$
  D) $\frac{1}{3}$
  Show Answer
  The correct answer is C .
• Question 1513: A binary operation * is defined by x * y = x^y. If x * 2 = 12 - x, find the possible values of x Options:
  A) 3,4
  B) 3,-4
  C) -3,4
  D) -3,-4
  Show Answer
  The correct answer is B .
• Question 1514: If T = 2$\pi$ $\sqrt{\frac{L}{g}}$, make g the subject of the formula Options:
  A) $\frac{4\pi L^2}{T}$
  B) $\frac{4{\pi }^2{L}^2}{T}$
  C) $\frac{4{\pi }^{2}L}{T}$
  D) $\frac{2\pi \sqrt{T}}{T}$
  Show Answer
  The correct answer is C .
• Question 1515: What is the locus of a point P which moves on one side of a straight line XY, so that the angle XPY is always equal to 90^o? Options:
  A) the perpendicular bisector of XY
  B) a right-angled triangle
  C) a circle
  D) a semi circle
  Show Answer
  The correct answer is D .
• Question 1516: A number is selected at random between 20 and 30, both numbers inclusive. Find the probability that the number is a prime Options:
  A) $\frac{2}{11}$
  B) $\frac{5}{11}$
  C) $\frac{6}{11}$
  D) $\frac{8}{11}$
  Show Answer
  The correct answer is A .
• Question 1517: Solve the equation 3x² + 6x - 2 = 0 Options:
  A) x = -1 $\pm$ $\frac{\sqrt{3}}{3}$
  B) x = -1 $\pm$ $\frac{\sqrt{15}}{3}$
  C) x = -2 $\pm$ 2
  D) x = 3 $\pm$ $\frac{\sqrt{3}}{15}$
  Show Answer
  The correct answer is B .
• Question 1518:

  The pie chart shows the monthly expenditure of a public servant. The monthly expenditure on housing is twice that of school fees. How much does the worker spend on housing if his monthly income is ₦7200?

  Options:
  A) ₦1000
  B) ₦2000
  C) ₦3000
  D) ₦4000
  Show Answer
  The correct answer is B .
• Question 1519: If $log{X}^{\frac{1}{2}}$ 64 = 3, find the value of x. Options:
  A) 4
  B) 16
  C) 32
  D) 64
  Show Answer
  The correct answer is B .
• Question 1520: If sin $\theta$ = $\frac{3}{5}$, find tan $\theta$ Options:
  A) $\frac{3}{4}$
  B) $\frac{3}{5}$
  C) $\frac{2}{4}$
  D) $\frac{1}{4}$
  Show Answer
  The correct answer is A .