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 441: The remainder when 6p³ - p² - 47p + 30 is divided by p - 3 is Options:
  A) 21
  B) 42
  C) 63
  D) 18
  Show Answer
  The correct answer is B .
• Question 442: If three unbiased coins are tossed, find the probability that they are all heads Options:
  A) $\frac{1}{2}$
  B) $\frac{1}{3}$
  C) $\frac{1}{9}$
  D) $\frac{1}{8}$
  Show Answer
  The correct answer is D .
• Question 443: The binary operation on the set of real numbers is defined by m*n = $\frac{mn}{2}$ for all m, n $\in$ R. If the identity element is 2, find the inverse of -5 Options:
  A) $-\frac{4}{5}$
  B) $-\frac{2}{5}$
  C) 4
  D) 5
  Show Answer
  The correct answer is A .
• Question 444: If x + 1 is a factor of x³ + 3x² + kx + 4, find the value of k Options:
  A) 6
  B) -6
  C) 8
  D) -8
  Show Answer
  The correct answer is A .
• Question 445: If y = 243(4x + 5)^-2, find $\frac{dy}{dx}$ when x = 1 Options:
  A) $\frac{-8}{3}$
  B) $\frac{3}{8}$
  C) $\frac{9}{8}$
  D) -$\frac{8}{9}$
  Show Answer
  The correct answer is A .
• Question 446: What is the size of each interior angle of a 12-sided regular polygon? Options:
  A) 120^o
  B) 150^o
  C) 30^o
  D) 180^o
  Show Answer
  The correct answer is B .
• Question 447:

  

  In the figure, WU//YZ, WY//YZ = 12cm, VZ = 6cm, XU = 8cm. Determine the length of WU.

  Options:
  A) 1cm
  B) 6cm
  C) 2cm
  D) 4cm
  E) 3cm
  Show Answer
  The correct answer is D .
• Question 448: A man and hid wife went to buy an article costing ₦400. The woman had 10% of the cost and the man 40% of the remainder. How much did they have altogether? Options:
  A) ₦216
  B) ₦200
  C) ₦184
  D) ₦144
  E) ₦100
  Show Answer
  The correct answer is C .
• Question 449:
  

  Find the volume of the composite solid above.

  Options:
  A) 2048 cm${}^3$
  B) 2568 cm${}^3$
  C) 2672 cm${}^3$
  D) 1320 cm${}^3$
  Show Answer
  The correct answer is B .
• Question 450: Find a factor which is common to all three binomial expressions 4a² - 9b², 8a³ + 27b³, (4a + 6b)² Options:
  A) 4a + 6b
  B) 4a - 6b
  C) 2a + 3b
  D) 2a - 3b
  E) none
  Show Answer
  The correct answer is C .