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 1521: Express 1223456 to 3 significant figures Options:
  A) 123000
  B) 124000
  C) 125000
  D) 126000
  Show Answer
  The correct answer is A .
• Question 1522: Write the decimal number 39 to base 2 Options:
  A) 10011 base 2
  B) 110111 base 2
  C) 111001 base 2
  D) 100101 base 2
  E) 19.5 base 2
  Show Answer
  The correct answer is A .
• Question 1523: if x : y = 5 : 12 and z = 52cm, find the perimeter of the triangle Options:
  A) 68cm
  B) 84cm
  C) 100cm
  D) 120cm
  Show Answer
  The correct answer is D .
• Question 1524: Simplify $\frac{1}{1+\sqrt{5}}$ - $\frac{1}{1-\sqrt{5}}$ Options:
  A) - $\frac{1}{2}\sqrt{5}$
  B) $\frac{1}{2}\sqrt{5}$
  C) -- $\frac{1}{4}\sqrt{5}$
  D) 5
  Show Answer
  The correct answer is A .
• Question 1525:

  

  From the diagram given, find the bearing of R from S

  Options:
  A) 226${}^{\circ }$
  B) 224${}^{\circ }$
  C) 136${}^{\circ }$
  D) 134${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 1526: Integrate $\frac{x^2-\sqrt{x}}{x}$ with respect to x Options:
  A) $\frac{x^2-\sqrt{x}}{x^2}$ + k
  B) $\frac{x^2}{2}$ - $\sqrt{x}$ + k
  C) $\frac{2(x^2-x)}{3x}$ + k
  D) $\frac{x^2}{2}$ - 2$\sqrt{x}$ + k
  Show Answer
  The correct answer is D .
• Question 1527: The nth term of a sequence is given 3^{1 - n} , find the sum of the first terms of the sequence. Options:
  A) $\frac{13}{9}$
  B) 1
  C) $\frac{1}{3}$
  D) $\frac{1}{9}$
  Show Answer
  The correct answer is A .
• Question 1528: Factorize 6x² - 14x - 12 Options:
  A) 2(x + 3)(3x - 2)
  B) 6(x - 2)(x + 1)
  C) 2(x - 3)(3x + 2)
  D) 6(x + 2)(x - 1)
  E) (3x - 4)(2x + 3)
  Show Answer
  The correct answer is C .
• Question 1529:

  

  The equation of the graph is

  Options:
  A) y = (x - 3)³
  B) y = (x + 3)³
  C) y = x³ - 27
  D) y = -x³ + 27
  Show Answer
  The correct answer is C .
• Question 1530:

  The area A of a circle is increasing at a constant rate of 1.5 cm${}^2{s}^{-1}$. Find, to 3 significant figures, the rate at which the radius r of the circle is increasing when the area of the circle is 2 cm${}^2$.

  Options:
  A) 0.200 cms${}^{-1}$
  B) 0.798 cms${}^{-1}$
  C) 0.300 cms${}^{-1}$
  D) 0.299 cms${}^{-1}$
  Show Answer
  The correct answer is D .