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 2101:

  If 2${}^{x+y}$ = 16 and 4${}^{x-y}=\frac{1}{32}$, find the values of x and y.

  Options:
  A) x = $\frac{3}{4}$, y = $\frac{11}{4}$
  B) x = $\frac{3}{4}$, y = $\frac{13}{4}$
  C) x = $\frac{2}{3}$, y = $\frac{4}{5}$
  D) x = $\frac{2}{3}$, y = $\frac{13}{4}$
  Show Answer
  The correct answer is B .
• Question 2102: 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 2103: If Q is a factor of 18 and T is prime numbers between 2 and 18. What is Q$\cap$T? Options:
  A) (2,3)
  B) (2,3,18)
  C) (2,3,9)
  D) (2,3,6)
  Show Answer
  The correct answer is A .
• Question 2104:

  Let (*) be a binary operation on a natural number defined by a * b = a - b + (ab)${}^2$, then find 3 * 5

  Options:
  A) 223
  B) 232
  C) 32
  D) -232
  Show Answer
  The correct answer is A .
• Question 2105:

  Solve for t in the equation $\frac{3}{4}$t + $\frac{1}{3}$(21 - t) = 11

  Options:
  A) $\frac{9}{13}$
  B) $\frac{7}{13}$
  C) 5
  D) 9$\frac{3}{5}$
  Show Answer
  The correct answer is D .
• Question 2106: A man sells his new brand car for ₦420,000 at a gain of 15%. What did it cost him? Options:
  A) ₦410,000
  B) ₦365,217
  C) ₦157,250
  D) ₦257,000
  Show Answer
  The correct answer is B .
• Question 2107: A chord of circle of radius 7cm is 5cm from the centre of the maximum possible area of the square? Options:
  A) 4√6 cm
  B) 3√6 cm
  C) 6√6 cm
  D) 2√6 cm
  Show Answer
  The correct answer is A .
• Question 2108: Each of the interior angles of a regular polygon is 140^o. Calculate the sum of all the interior angles of the polygon Options:
  A) 1080^o
  B) 1260^o
  C) 1800^o
  D) 2160^o
  Show Answer
  The correct answer is B .
• Question 2109: The sum of two numbers is twice their difference. If the difference of the numbers is P, find the larger of the two numbers Options:
  A) p/2
  B) 3p/2
  C) 5p/2
  D) 3p
  Show Answer
  The correct answer is B .
• Question 2110: For an arithmetical sequence, the first term is 2 and the common difference is 3. Find the sum of the first 11 terms Options:
  A) 157
  B) 187
  C) 197
  D) 200
  Show Answer
  The correct answer is B .