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 1161:

  

  Find the length XY in the triangle above.

  Options:
  A) √7 m
  B) √6 m
  C) √5 m
  D) √3 m
  Show Answer
  The correct answer is A .
• Question 1162: Evaluate x²(x² - 1)^{-$\frac{1}{2}$} - (x² - 1)^{$\frac{1}{2}$} Options:
  A) (x² - 1)^{-$\frac{1}{2}$}
  B) (x² - 1)¹
  C) (x² - 1)
  D) (x² - 1)^-1
  Show Answer
  The correct answer is A .
• Question 1163: A sector of angle 120° is cut out from a circle of radius 13.5cm. what area of the circle is remaining ? (π = $\frac{22}{7}$) Options:
  A) 14.1cm²
  B) 95.5cm²
  C) 190.9cm²
  D) 381.9cm²
  E) 763.7cm²
  Show Answer
  The correct answer is D .
• Question 1164: If y + $\frac{1}{y}$ = 9, evaluate y² + $\frac{1}{y^2}$ Options:
  A) 27
  B) 38
  C) 54
  D) 63
  E) 79
  Show Answer
  The correct answer is E .
• Question 1165:

  If X = {all the perfect squares less than 40}

  Y = {all the odd numbers fro, 1 to 15}. Find X ∩ Y.

  Options:
  A) {3, 9}
  B) {9}
  C) {9, 25}
  D) {1, 9}
  Show Answer
  The correct answer is D .
• Question 1166:

  

  In the figure above, TZ is tangent to the circle QPZ. Find x if TZ = 6 units and PQ = 9 units

  Options:
  A) 3
  B) 4
  C) 5
  D) 6
  Show Answer
  The correct answer is B .
• Question 1167: The sum of the first n positive integers is Options:
  A) $\frac{1}{2}$(n + 1)
  B) n $\frac{1}{2}$(n + 1)
  C) n(n - 1)
  D) n(n + 1)
  Show Answer
  The correct answer is B .
• Question 1168: 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 1169: A binary operation * is defined by a*b = a^b. If a*2 = 2-a, find the possible values of a. Options:
  A) 1, -1
  B) 1, 2
  C) 2, -2
  D) 1, -2
  Show Answer
  The correct answer is D .
• Question 1170: Find the midpoint of the line joining P(-3, 5) and Q(5, -3). Options:
  A) (1, 1)
  B) (2, 2)
  C) (4, 4)
  D) (4, -4)
  Show Answer
  The correct answer is A .