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 71: make U the subject of the formula S = $\sqrt{\frac{6}{u}-\frac{w}{2}}$ Options:
  A) u = $\frac{12}{2s^2}$
  B) u = $\frac{12}{2s+w}$
  C) u = $\frac{12}{2s^2+w}$
  D) u = $\frac{12}{2s^2}$ + w
  Show Answer
  The correct answer is C .
• Question 72: The probability of an event P is $\frac{3}{4}$ while that of another event Q is $\frac{1}{6}$. If the probability of both P and Q is $\frac{1}{2}$. What is the probability of either P or Q. Options:
  A) $\frac{1}{96}$
  B) $\frac{1}{8}$
  C) $\frac{5}{6}$
  D) $\frac{11}{12}$
  Show Answer
  The correct answer is C .
• Question 73:

  If $\frac{3-\sqrt{3}}{2+\sqrt{3}}=a+b\sqrt{3}$, what are the values a and b?

  Options:
  A) a = 9, b = -5
  B) a = 5, b = 9
  C) a = 9, b = 5
  D) a = -5, b = 9
  Show Answer
  The correct answer is A .
• Question 74: If P344₆ - 23P2₆ = 2PP2₆, find the value of the digit P. Options:
  A) 2
  B) 3
  C) 4
  D) 5
  Show Answer
  The correct answer is D .
• Question 75: If P = {1,2,3,4,5} and P $\cup$ Q = {1,2,3,4,5,6,7}, list the elements in Q Options:
  A) {6}
  B) {7}
  C) {6,7}
  D) {5,6}
  Show Answer
  The correct answer is C .
• Question 76: If (g(y)) = $\frac{y-3}{11}$ + $\frac{11}{y^2-9}$. what is g(y + 3)? Options:
  A) $\frac{y}{11}+\frac{11}{y(y+6)}$
  B) $\frac{y}{11}+\frac{11}{y(y+3)}$
  C) $\frac{y+30}{11}+\frac{11}{y(y+3)}$
  D) $\frac{y+3}{11}+\frac{11}{y(y-6)}$
  Show Answer
  The correct answer is A .
• Question 77: If y = 3 cos 4x, $\frac{dy}{dx}$ equals Options:
  A) 6 sin 8x
  B) -24 sin 4x
  C) 12 sin 4x
  D) -12 sin 4x
  Show Answer
  The correct answer is D .
• Question 78: If log₁₀2 = 0.3010 and log₁₀3 = 0.4771, evaluate; without using logarithm tables, log₁₀4.5 Options:
  A) 0.3010
  B) 0.4771
  C) 0.6532
  D) 0.9542
  Show Answer
  The correct answer is C .
• Question 79: A cone is formed by bending a sector of a circle Saving an angle or 210°. Find the radius of the base of the cone. If the diameter of the circle is 12cm. Options:
  A) 7.00cm
  B) 1.75cm
  C) 21cm
  D) 3.50cm
  E) 2.21cm
  Show Answer
  The correct answer is D .
• Question 80: Solve the inequality 2 - x > x².
  Options:
  A) x < -2 or x > 1
  B) x > 2 or x< -1
  C) -1 < x < 2
  D) -2 < x < 1
  Show Answer
  The correct answer is D .