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 481: Simplify $\sqrt{48}$ - $\frac{9}{\sqrt{3}}$ + $\sqrt{75}$ Options:
  A) 5√3
  B) 6√3
  C) 8√3
  D) 18√3
  Show Answer
  The correct answer is B .
• Question 482: By selling an article for ₦45.00 a man makes a profit of 80%. For how much should he have sold it in order to make a profit of 32%? Options:
  A) ₦180.00
  B) ₦59.00
  C) ₦63.00
  D) ₦58.00
  E) ₦55.00
  Show Answer
  The correct answer is E .
• Question 483: Factorize completely 8a + 125ax³ Options:
  A) (2a + 5x²)(4 + 26ax)
  B) a(2 + 5x)(4 - 10x + 25x²)
  C) (2a + 5x)(4 - 10ax + 25x²)
  D) a(2 + 5x)(4 + 10ax + 25x²)
  Show Answer
  The correct answer is B .
• Question 484: The seconds term of a geometric series is 4 while the fourth term is 16. Find the sum of the first five terms Options:
  A) 60
  B) 62
  C) 54
  D) 64
  Show Answer
  The correct answer is B .
• Question 485: Find the sum of the first 18 terms of the series 3, 6, 9,..., 36. Options:
  A) 505
  B) 513
  C) 433
  D) 635
  Show Answer
  The correct answer is B .
• Question 486: A car painter charges ₦40.00 per day for himself and ₦10.00 per day for his assistant. if a fleet of cars were painted for ₦2000.00 and the painter worked 10days more than his assistant, how much did the assistant receive? Options:
  A) ₦32.00
  B) ₦320.00
  C) ₦420.00
  D) ₦1680.00
  Show Answer
  The correct answer is B .
• Question 487: Factorize completely the expression abx² + 6y - 3ax - 2byx Options:
  A) (ax - 2y)(bx - 3)
  B) (bx + 3)(2y - ax)
  C) (bx + 3)(ax - 2y)
  D) (ax - 2y)(ax - b)
  Show Answer
  The correct answer is A .
• Question 488: Solve the simultaneous equations $\frac{2}{x}-\frac{2}{x}$ = 2, $\frac{4}{x}+\frac{3}{y}$ = 10 Options:
  A) x = $\frac{3}{2}$, y = $\frac{3}{2}$
  B) x = $\frac{1}{2}$, y = $\frac{3}{2}$
  C) x = $\frac{-1}{2}$, y = $\frac{-3}{2}$
  D) x = $\frac{1}{2}$, y = $\frac{3}{2}$
  Show Answer
  The correct answer is B .
• Question 489: Solve the following equation (3x - 2)(5x - 4) = (3x - 2)² Options:
  A) $\frac{-2}{3}$, 1
  B) 1
  C) $\frac{2}{3}$, 1
  D) $\frac{2}{3}$, $\frac{4}{5}$
  Show Answer
  The correct answer is C .
• Question 490:

  

  In the figure, DE//BC: DB//FE: DE = 2cm, FC = 3cm, AE = 4cm. Determine the length of EC.

  Options:
  A) 4cm
  B) 6cm
  C) 3cm
  D) 2cm
  E) 1cm
  Show Answer
  The correct answer is B .