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 571:

  

  Find the area of the shades segments in the figure.

  Options:
  A) $\sqrt{3}$
  B) 4 $\pi -\sqrt{3}$
  C) -$\frac{2}{3}\pi$
  D) $\frac{2\pi }{3}$ -3
  Show Answer
  The correct answer is D .
• Question 572: If 5^{(x + 2y)} = 5 and 4^{(x + 3y)} = 16, find 3^{(x + y)} Options:
  A) 7
  B) 1
  C) 3
  D) 27
  Show Answer
  The correct answer is B .
• Question 573: What is the different between 0.007685 correct to three significant figures and 0.007685 correct to four places of decimal? Options:
  A) 10^-5
  B) 7 x 10^-4
  C) 8 x 10^-5
  D) 10^-6
  Show Answer
  The correct answer is A .
• Question 574: A solid cylinder of radius $3$cm has a total surface area of $36\pi$cm${}^2$. Find its height. Options:
  A) 2cm
  B) 3cm
  C) 4cm
  D) 5cm
  E) 6cm
  Show Answer
  The correct answer is B .
• Question 575:

  Divide 1101001${}_{two}$ by 101${}_{two}$

  Options:
  A) 11101${}_{two}$
  B) 111${}_{two}$
  C) 10111${}_{two}$
  D) 10101${}_{two}$
  Show Answer
  The correct answer is D .
• Question 576: If $\sqrt{x^2+9}$ = x + 1, solve for x Options:
  A) 5
  B) 4
  C) 3
  D) 2
  E) 1
  Show Answer
  The correct answer is B .
• Question 577: A canal has rectangular cross section of width10cm and breadth 1m. If water of uniform density 1 gm cm^-3 flows through it at a constant speed of1000mm per minute, the adjacent sea is Options:
  A) 100000
  B) 1000000
  C) 120000
  D) 30000
  E) 350000
  Show Answer
  The correct answer is A .
• Question 578: The sine, cosine and tangent of 210^o are respectively Options:
  A) $\frac{1}{2}$, $\frac{\sqrt{3}}{2}$, $\frac{\sqrt{3}}{2}$
  B) $\frac{1}{2}$, $\frac{\sqrt{3}}{2}$, $\frac{\sqrt{3}}{3}$
  C) $\frac{1}{2}$, $\frac{\sqrt{3}}{2}$, $\frac{\sqrt{3}}{2}$
  D) $\frac{-1}{2}$, $\frac{\sqrt{-3}}{2}$, $\frac{\sqrt{3}}{3}$
  Show Answer
  The correct answer is D .
• Question 579:

  In a class of 50 students, 40 students offered Physics and 30 offered Biology. How many offered both Physics and Biology?

  Options:
  A) 42
  B) 20
  C) 70
  D) 54
  Show Answer
  The correct answer is B .
• Question 580: The acres for rice, pineapple, cassava, cocoa, and palm oil in a certain district are given respectively as 2, 5, 3, 11, and 9. What is the angle sector for cassava in a pie chart? Options:
  A) 108°
  B) 180°
  C) 36°
  D) 60°
  Show Answer
  The correct answer is C .