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 1241: If two dice are thrown together, what is the probability of obtaining at least a score of 10? Options:
  A) $\frac{1}{6}$
  B) $\frac{1}{12}$
  C) $\frac{5}{6}$
  D) $\frac{11}{12}$
  Show Answer
  The correct answer is A .
• Question 1242:

  Tossing a coin and rolling a die are two separate events. What is the probability of obtaining a tail on the coin and an even number on the die?

  Options:
  A) $\frac{1}{16}$
  B) $\frac{1}{6}$
  C) $\frac{1}{4}$
  D) $\frac{3}{8}$
  Show Answer
  The correct answer is C .
• Question 1243: Some white balls put in a basket containing twelve red balls and sixteen black balls. If the probability of picking a white balls from the baskets is 3/7, how many white balls were introduced? Options:
  A) 12
  B) 21
  C) 28
  D) 32
  Show Answer
  The correct answer is B .
• Question 1244:

  

  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 1245:
  

  The shaded portion in the venn diagram above represents?

  Options:
  A) F - (E n F) - (G n F)
  B) E' n F n G'
  C) E u F u G
  D) F
  Show Answer
  The correct answer is B .
• Question 1246:

  $\begin{array}{cccc}\text{Age in years}& 10& 11& 12\\ \text{Number of pupils}& 6& 27& 7\end{array}$

  The table above shows the number of pupils in each age group in a class. What is the probability that a pupil chosen at random is at least 11 years old?

  Options:
  A) $\frac{27}{40}$
  B) $\frac{17}{20}$
  C) $\frac{33}{40}$
  D) $\frac{3}{20}$
  Show Answer
  The correct answer is B .
• Question 1247:

  Which of the following values of the variable x, (a)x = 0, (b)x = -3, (c)x = 9, satisfy the inequalities 0 < $\frac{x+3}{x-1}$ < 2?

  Options:
  A) (a), (b), (c)
  B) (c)
  C) None of the choices
  D) All of the above
  Show Answer
  The correct answer is C .
• Question 1248: A binary operation defines $\ast$ on the set of positive integers is such that x $\ast$ y = 2x - 3y + 2 for all positive integers x and y. The binary operation is Options:
  A) commutative and closed on the set of positive integers
  B) neither commutative nor closed on the set of positive integers
  C) commutative but not closed on the set of positive integers
  D) not commutative but closed on the set of positive integers
  Show Answer
  The correct answer is B .
• Question 1249: If the numbers M, N, Q are in the ratio 5:4:3, find the value of $\frac{2N-Q}{M}$ Options:
  A) 2
  B) 3
  C) 1
  D) 4
  Show Answer
  The correct answer is C .
• Question 1250:

  

  In the figure, the area of the shaded segment is

  Options:
  A) 3$\pi$
  B) 9$\frac{\sqrt{3}}{4}$
  C) 3 $\pi -3\frac{\sqrt{3}}{4}$
  D) $\frac{(\sqrt{3-\pi )}}{4}$
  E) $\pi +\frac{9\sqrt{3}}{4}$
  Show Answer
  The correct answer is C .