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 371:

  If a fair coin is tossed 3 times, what is the probability of getting at least two heads?

  Options:
  A) $\frac{2}{3}$
  B) $\frac{4}{5}$
  C) $\frac{2}{5}$
  D) $\frac{1}{2}$
  Show Answer
  The correct answer is D .
• Question 372: An isosceles triangle of sides 13cm, 13cm, 10cm is inscribed in a circle. What is the radius of the circle? Options:
  A) 7cm
  B) 12cm
  C) 8cm
  D) 7cm
  E) 69cm
  Show Answer
  The correct answer is A .
• Question 373: What value of g will make the expression 4x² - 18xy + g a perfect square? Options:
  A) 9
  B) $\frac{9y^2}{4}$
  C) 81y^2
  D) $\frac{18y^2}{4}$
  Show Answer
  The correct answer is D .
• Question 374: The nth term of a sequence is given as 4 x 3(3 - n). Calculate the third term. Options:
  A) 12
  B) 32
  C) 4
  D) 3
  E) 1
  Show Answer
  The correct answer is C .
• Question 375: In a school, there are 35 students in Class 2A and 40 in class 2B. The mean score for class 2A in an English literature examination is 60.0 and that for 2B in the same paper is 52.5. Find to one place of decimals, the mean for the combined classes. Options:
  A) 1.5
  B) 56.0
  C) 56.2
  D) 56.3
  E) 56.5
  Show Answer
  The correct answer is B .
• Question 376: If the 2nd term of a G.P is $\frac{8}{9}$ and the 6th term is 4$\frac{1}{2}$. Find the common ratio. Options:
  A) 2
  B) $\frac{3}{2}$
  C) $\frac{2}{3}$
  D) 3
  Show Answer
  The correct answer is B .
• Question 377: What is the Value Of 11101${}_{two}$+ 10011${}_{two}$ - 10001${}_{two}$ Options:
  A) 10001${}_{two}$
  B) 10011${}_{two}$
  C) 10111${}_{two}$
  D) 11111${}_{two}$
  E) 111111${}_{two}$
  Show Answer
  The correct answer is E .
• Question 378:

  If Q is$\left[\begin{array}{cc}9& -2\\ -7& 4\end{array}\right]$, then |Q| is

  Options:
  A) -50
  B) -22
  C) 22
  D) 50
  Show Answer
  The correct answer is C .
• Question 379:

  

  In the figure above, |CD| is the base of the triangle CDE. Find the area of the figure to the nearest whole number.

  Options:
  A) 56 cm${}^2$
  B) 24 cm${}^2$
  C) 42 cm${}^2$
  D) 34 cm${}^2$
  Show Answer
  The correct answer is D .
• Question 380: Simplify 4 - $\frac{1}{2-\sqrt{3}}$ Options:
  A) 2$\sqrt{3}$
  B) -2 - $\sqrt{3}$
  C) -2 + $\sqrt{3}$
  D) 2 - $\sqrt{3}$
  Show Answer
  The correct answer is D .