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 1971: A chord is drawn 5 cm away from the centre of a circle of radius 13 cm. Calculate the length of the chord. Options:
  A) 7 cm
  B) 9 cm
  C) 12 cm
  D) 24 cm
  Show Answer
  The correct answer is C .
• Question 1972: Find the equation of the straight line through (-2, 3) and perpendicular to 4x + 3y - 5 = 0 Options:
  A) 3x - 4y + 18 = 0
  B) 3x + 2y - 18 = 0
  C) 4x + 5y + 3 = 0
  D) 5x - 2y - 11 = 0
  Show Answer
  The correct answer is A .
• Question 1973: Three children shared a basket of mangoes in such a way that the first child took $\frac{1}{4}$ of the mangoes and the second $\frac{3}{4}$ of the remainder. What fraction of the mangoes did the third child take? Options:
  A) $\frac{3}{16}$
  B) $\frac{7}{16}$
  C) $\frac{9}{16}$
  D) $\frac{13}{16}$
  Show Answer
  The correct answer is A .
• Question 1974:

  

  In the figure, O is the centre of the circle ABC, < CED = 30${}^{\circ }$, < EDA = 40${}^{\circ }$. What is the size of < ABC?

  Options:
  A) 70${}^{\circ }$
  B) 110${}^{\circ }$
  C) 130${}^{\circ }$
  D) 125${}^{\circ }$
  E) 145${}^{\circ }$
  Show Answer
  The correct answer is D .
• Question 1975: At what value of x does the function y= -3 – 2x +x2 attain a minimum value? Options:
  A) 4
  B) 2
  C) -1
  D) -4
  E) 1
  Show Answer
  The correct answer is E .
• Question 1976: A cone with the sector angle of 45^o is cut out of a circle of radius of the cone. Options:
  A) $\frac{r}{16}$ cm
  B) $\frac{r}{6}$ cm
  C) $\frac{r}{8}$ cm
  D) $\frac{r}{2}$ cm
  Show Answer
  The correct answer is C .
• Question 1977: After getting a rise of 15%, a man's new monthly salary is ₦345. How much per month did he earn before the increase? Options:
  A) ₦330
  B) n396.75
  C) ₦300
  D) ₦293.25
  E) ₦360
  Show Answer
  The correct answer is C .
• Question 1978: If 27^{x + 2} $÷$ 9^{x + 1} = 3^2x, find x Options:
  A) 3
  B) 4
  C) 5
  D) 6
  Show Answer
  The correct answer is B .
• Question 1979: Simplify log₁₀1.5 + 3 log₁₀2 − log₁₀0.3 Options:
  A) log₁₀4
  B) log₁₀40
  C) log₁₀-40
  D) log₁₀4^-
  Show Answer
  The correct answer is B .
• Question 1980:

  Find the capacity in liters of a cylindrical well of radius 1 meter and depth 14 meters

  [π = ²²/₇]

  Options:
  A) 44,000 liters
  B) 4,400 liters
  C) 440 liters
  D) 44 liters
  Show Answer
  The correct answer is A .