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 1571: 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 1572: 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 1573:

  The 10th term of an AP is 32. If the first term is 3/2, what is the 4th term?

  Options:
  A) 35/3
  B) 64
  C) 16
  D) 35/2
  Show Answer
  The correct answer is A .
• Question 1574: List all integers satisfying the inequality -1 $\le$ 2 x -6 < 4. Options:
  A) 2, 3, 4, 5
  B) 2, 3, 4
  C) 2, 5
  D) 3, 4, 5
  E) 4, 5
  Show Answer
  The correct answer is B .
• Question 1575: Find the acute angle between the straight lines y = x and y = $\sqrt{3x}$ Options:
  A) 15^o
  B) 30^o
  C) 45^o
  D) 60^o
  Show Answer
  The correct answer is B .
• Question 1576: Add the same number to the numerator and denominator of $\frac{3}{18}$. If the resulting fraction is $\frac{1}{2}$, then the number added is Options:
  A) 13
  B) 14
  C) 15
  D) 12
  E) 11
  Show Answer
  The correct answer is D .
• Question 1577:

  $\begin{array}{ccccccc}\text{Marks}& 3& 4& 5& 6& 7& 8\\ \text{Frequency}& 5& y-1& y& 9& 4& 1\end{array}$

  The table above gives the frequency distribution of marks obtained by a group of students in a test. If the total mark scored is 200, the value of y is

  Options:
  A) 11
  B) 15
  C) 9
  D) 13
  Show Answer
  The correct answer is A .
• Question 1578: 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 1579:

  

  The diagram is a circle with centre O. Find the area of the shaded portion.

  Options:
  A) 9($\pi -2)c{m}^2$
  B) 18$\pi c{m}^2$
  C) 9$\pi c{m}^2$
  D) 36$\pi c{m}^2$
  Show Answer
  The correct answer is A .
• Question 1580:

  $\begin{array}{cccccc}x& 1& 2& 3& 4& 5\\ f& y+2& y-2& 2y-3& y+4& 3y-4\end{array}$

  This table shows the frequency distribution of a data if the mean is $\frac{43}{14}$ find y

  Options:
  A) 1
  B) 2
  C) 3
  D) 4
  Show Answer
  The correct answer is B .