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 1441:

  

  In the diagram above , XZ is the diameter of the circle XZW, with center O and radius 15/2 cm. If XY = 12 cm, find the area of the triangle XYZ

  Options:
  A) 54 cm²
  B) 45 cm²
  C) 27 cm²
  D) 75 cm²
  Show Answer
  The correct answer is A .
• Question 1442: If y = x sin x, find $\frac{\delta y}{\delta x}$ Options:
  A) sin x - cos x
  B) cos x - x sin x
  C) cos x + x sin x
  D) sin x + x cos x
  Show Answer
  The correct answer is D .
• Question 1443: A man donates 10% of his monthly net earnings to his church. If it amounts to ₦4,500, what is his net monthly income? Options:
  A) ₦40,500
  B) ₦45,000
  C) ₦52,500
  D) ₦62,000
  Show Answer
  The correct answer is B .
• Question 1444: Find the sum to infinity of the series $2+\frac{3}{2}+\frac{9}{8}+\frac{27}{32}+......$ Options:
  A) 1
  B) 2
  C) 8
  D) 4
  Show Answer
  The correct answer is C .
• Question 1445: Simplify [1 ÷ (x + 1)] - [2 ÷ (x - 1)] + [3 ÷ (x² - 1)] Options:
  A) - 3x ÷ (x² - 1)
  B) - x ÷ (x² -1)
  C) x ÷ (x² - 1)
  D) (x + 1) ÷ (x² - 1)
  E) (x + 4) ÷ (x² - 1)
  Show Answer
  The correct answer is B .
• Question 1446: Find the sum to infinity of the following series. 0.5 + 0.05 + 0.005 + 0.0005 + ..... Options:
  A) $\frac{5}{8}$
  B) $\frac{5}{7}$
  C) $\frac{5}{11}$
  D) $\frac{5}{9}$
  Show Answer
  The correct answer is D .
• Question 1447:

  

  The angles marked in the figure are measured in degrees. Find x.

  Options:
  A) 45${}^{\circ }$
  B) 90${}^{\circ }$
  C) 60${}^{\circ }$
  D) 15${}^{\circ }$
  E) 30${}^{\circ }$
  Show Answer
  The correct answer is E .
• Question 1448:

  

  Determine the value of x in the figure.

  Options:
  A) 134${}^{\circ }$
  B) 81${}^{\circ }$
  C) 53${}^{\circ }$
  D) 46${}^{\circ }$
  Show Answer
  The correct answer is A .
• Question 1449: simplify $\frac{\frac{7}{9}-\frac{2}{3}}{\frac{1}{3}+\frac{\frac{2}{5}}{\frac{4}{5}}}$ Options:
  A) $\frac{11}{12}$
  B) $\frac{5}{6}$
  C) $\frac{1}{5}$
  D) $\frac{2}{15}$
  Show Answer
  The correct answer is D .
• Question 1450:

  The maximum value of the function

  F(x) = 2 + x - x² is

  Options:
  A) 9/4
  B) 7/4
  C) 3/2
  D) 1/2
  Show Answer
  The correct answer is A .