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 401: 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 402: Evaluate $\frac{\frac{3}{8}÷\frac{1}{2}-\frac{1}{3}}{\frac{1}{8}\times \frac{2}{3}+\frac{1}{3}}$ Options:
  A) $\frac{1}{4}$
  B) $\frac{1}{3}$
  C) $\frac{1}{2}$
  D) 1
  Show Answer
  The correct answer is D .
• Question 403: Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2950, find y. Options:
  A) 51
  B) 48
  C) 30
  D) 25
  E) 18
  Show Answer
  The correct answer is C .
• Question 404: If (IPO3)4 = 115₁₀ find P Options:
  A) o
  B) 1
  C) 2
  D) 3
  Show Answer
  The correct answer is D .
• Question 405: Obtain a maximum value of the function f(x) x³ - 12x + 11 Options:
  A) -5
  B) -2
  C) 2
  D) 27
  Show Answer
  The correct answer is D .
• Question 406:

  The pie chart shows the monthly expenditure of a public servant. The monthly expenditure on housing is twice that of school fees. How much does the worker spend on housing if his monthly income is ₦7200?

  Options:
  A) ₦1000
  B) ₦2000
  C) ₦3000
  D) ₦4000
  Show Answer
  The correct answer is B .
• Question 407: The volume of a hemispherical bowl is 718$\frac{2}{3}$ cm³. Find its radius. Options:
  A) 4.0cm
  B) 7.0cm
  C) 3.8cm
  D) 5.6cm[$\pi$ = $\frac{22}{7}$]
  Show Answer
  The correct answer is B .
• Question 408: An operation * is defined on the set of real numbers by a*b = a + b + 1. If the identity elements is -1, find the inverse of the element 2 under *. Options:
  A) 4
  B) zero
  C) -2
  D) -4
  Show Answer
  The correct answer is D .
• Question 409:

  Given U = {x is a positive integer less than 15} and P = {x is even number from 1 to 14}. Find the compliment.

  Options:
  A) {1, 3, 5, 7, 9, 11, 13, 15}
  B) {2, 3, 5, 7, 9, 11, 13}
  C) {1, 3, 5, 7, 9, 11, 13}
  D) {2, 3, 5, 7, 11, 15}
  Show Answer
  The correct answer is C .
• Question 410: Rationalize $\frac{2\sqrt{3}+3\sqrt{2}}{3\sqrt{2}-2\sqrt{3}}$ Options:
  A) 5 - 2$\sqrt{6}$
  B) 5 + 2$\sqrt{6}$
  C) 5$\sqrt{6}$
  D) 5
  Show Answer
  The correct answer is B .