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 771: Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number Options:
  A) 2
  B) 3
  C) 4
  D) 5
  E) 6
  Show Answer
  The correct answer is B .
• Question 772: Find the derivative of $\frac{\sin \theta }{\cos \theta }$ Options:
  A) sec² $\theta$
  B) tan $\theta$ cosec $\theta$
  C) cosec $\theta$sec $\theta$
  D) cosec²$\theta$
  Show Answer
  The correct answer is A .
• Question 773: 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 774: Mohammed is 8 years older than Joy now. In five years’ time he will be twice as old as Joy. How old is Joy now? Options:
  A) 1$\frac{1}{2}$years
  B) 3years
  C) 4$\frac{1}{2}$years
  D) 6 years
  E) 8 years
  Show Answer
  The correct answer is B .
• Question 775: The set of value of x and y which satisfies the equations x² - y - 1 = 0 and y - 2x + 2 = 0 is Options:
  A) 1, 0
  B) 1, 1
  C) 2, 2
  D) 0, 2
  E) 1, 2
  Show Answer
  The correct answer is A .
• Question 776:

  

  If PST is a straight line and PQ = QS = SR in the diagram, find y.

  Options:
  A) 24${}^{\circ }$
  B) 48${}^{\circ }$
  C) 72${}^{\circ }$
  D) 84${}^{\circ }$
  Show Answer
  The correct answer is A .
• Question 777: Find the remainder when 2x³ - 11x² + 8x - 1 is divided by x + 3 Options:
  A) -871
  B) -781
  C) -187
  D) -178
  Show Answer
  The correct answer is D .
• Question 778: A basket contains 9 apples, 8 bananas and 7 oranges. A fruit is picked from the basket, find the probability that it is neither an apple nor an orange. Options:
  A) $\frac{3}{8}$
  B) $\frac{1}{3}$
  C) $\frac{7}{24}$
  D) $\frac{2}{3}$
  Show Answer
  The correct answer is B .
• Question 779:

  i. S∩T∩W = S
  ii. S∪T∪W = W
  ii. T∩W = S

  If S$\subset$T$\subset$W. Which of the above statements are true?

  Options:
  A) i and ii
  B) i and iii
  C) ii and iii
  D) i, ii and iii
  Show Answer
  The correct answer is B .
• Question 780: Given: p = {1, 3, 5, 7, 9, 11} and Q = {2, 4, 6, 8, 10, 12}. Determine the relationship between P and Q Options:
  A) P = Q
  B) P $\supset$ Q
  C) p ∩ Q = $\varphi$
  D) Q ∪ P
  Show Answer
  The correct answer is C .