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 1471: If 9^{(x - $\frac{1}{2}$)} 3x² Options:
  A) $\frac{1}{2}$
  B) 1
  C) 2
  D) 3
  Show Answer
  The correct answer is B .
• Question 1472: By selling an article for ₦45.00 a man makes a profit of 8%. For how much should he have sold it in order to make a profit of 32%? Options:
  A) ₦180.00
  B) ₦59.90
  C) ₦63.00
  D) ₦58.00
  E) ₦55.00
  Show Answer
  The correct answer is E .
• Question 1473: simplify $\frac{6^{2n+1}\times 9^n\times 4^{2n}}{{18}^n\times 2^n\times {12}^{2n}}$ Options:
  A) 3²ⁿ
  B) 3 x 2^{3n - 1}
  C) 2ⁿ
  D) 6
  E) 1
  Show Answer
  The correct answer is D .
• Question 1474: An arc of length 22cm subtends an angle of θ at the center of the circle. What is the value of θ if the radius of the circle is 15cm?[Take π = 22/7] Options:
  A) 70^o
  B) 84^o
  C) 96^o
  D) 156^o
  E) 168^o
  Show Answer
  The correct answer is B .
• Question 1475: If sin θ = 4/5 where 0° ∠ θ ∠ 900, what is the value of cos θ + tan θ? Options:
  A) $\frac{14}{15}$
  B) $\frac{15}{29}$
  C) $\frac{13}{8}$
  D) $\frac{144}{15}$
  E) $\frac{24}{5}$
  Show Answer
  The correct answer is D .
• Question 1476: If a : b = 5 : 8, x : y = 25 : 16; evaluate $\frac{a}{x}$ : $\frac{b}{y}$ Options:
  A) 125 : 128
  B) 3 : 5
  C) 3 : 4
  D) 2 : 5
  Show Answer
  The correct answer is D .
• Question 1477: A car dealer bought a second-hand car for ₦250,000 and spent ₦70,000 refurbishing it. He then sold the car for ₦400,000. What is the percentage gain? Options:
  A) 60%
  B) 32%
  C) 25%
  D) 20%
  Show Answer
  The correct answer is C .
• Question 1478: Find the product of (2$\sqrt{y-3y}$) and (3y = 2y) Options:
  A) 4y = y²
  B) 4y + 9y²
  C) 4y - 9y²
  D) -4y - 9y²
  E) 2y + y²
  Show Answer
  The correct answer is C .
• Question 1479:

  find the limit of y = $\frac{x^3+6x-7}{x-1}$ as x tends to 1

  Options:
  A) 9
  B) 8
  C) 0
  D) 7
  Show Answer
  The correct answer is A .
• Question 1480: Find the slope of the curve y = 2x²n+ 5x - 3 at (1, 4). Options:
  A) 4
  B) 6
  C) 7
  D) 9
  Show Answer
  The correct answer is D .