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 1311: A 5.0g of salt was weighted by Tunde as 5.1g. What is the percentage error? Options:
  A) 20
  B) 2
  C) 1.1
  D) 0.2
  Show Answer
  The correct answer is B .
• Question 1312: If M represents the median and D the mode of the measurements 5, 9, 3, 5, 8 then (M, D) is Options:
  A) (6, 5)
  B) (5, 8)
  C) (5, 7)
  D) (5, 5)
  E) (7, 5)
  Show Answer
  The correct answer is D .
• Question 1313: If y varies directly as the square root of x and y = 3 when x = 16. Calculate y when x = 64 Options:
  A) 12
  B) 6
  C) 3
  D) 5
  Show Answer
  The correct answer is B .
• Question 1314:

  Each of the interior angles of a regular polygon is 140°. How many sides has the polygon?

  Options:
  A) 9
  B) 8
  C) 7
  D) 5
  Show Answer
  The correct answer is A .
• Question 1315:

  The slope of the tangent to the curve y = 3x² - 2x + 5 at the point (1, 6) is

  Options:
  A) 4
  B) 1
  C) 6
  D) 5
  Show Answer
  The correct answer is A .
• Question 1316: Simplify ($\frac{1}{\sqrt{5}+\sqrt{3}}-\frac{1}{\sqrt{5}-\sqrt{3}}$ x $\frac{1}{\sqrt{3}}$) Options:
  A) $\frac{\sqrt{3}}{\sqrt{5}}$
  B) $\frac{2\sqrt{3}}{7}$
  C) -2
  D) -1
  Show Answer
  The correct answer is B .
• Question 1317: At what rate would a sum of ₦100.00 deposited for 5 years raise an interest of ₦7.50? Options:
  A) 1$\frac{1}{2}$%
  B) 2$\frac{1}{2}$%
  C) 1.5%
  D) 25%
  Show Answer
  The correct answer is C .
• Question 1318:

  Find the equation of straight line passing through (2, 3) and perpendicular to the line $3x+2y+4=0$

  Options:
  A) 3y = 5x - 2
  B) y = $\frac{5}{3}\times -2$
  C) None of these
  D) 3y = 2x + 5
  Show Answer
  The correct answer is D .
• Question 1319: If P = 18, Q = 21, R = -6 and S = -4, Calculate $\frac{(P-Q{)}^3+S^2}{R^3}$ + S² Options:
  A) $\frac{-11}{216}$
  B) $\frac{11}{216}$
  C) $\frac{-43}{116}$
  D) $\frac{43}{116}$
  Show Answer
  The correct answer is B .
• Question 1320: A cylindrical tank has a capacity of 6160m³. What is the depth of the tank if the radius of its base is 28cm? Options:
  A) 8.0m
  B) 7.5m
  C) 5.0m
  D) 2.5m
  Show Answer
  The correct answer is D .