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 2581: Evaluate the inequality $\frac{x}{2}+\frac{3}{4}\le \frac{5x}{6}-\frac{7}{12}$ Options:
  A) $x\ge 4$
  B) $x\le 3$
  C) $x\ge -3$
  D) $x\le -4$
  Show Answer
  The correct answer is A .
• Question 2582:

  

  The bar chart above shows the marks obtained by students in a mathematics test.

  How many students in all took the test?

  Options:
  A) 40
  B) 30
  C) 10
  D) 20
  Show Answer
  The correct answer is A .
• Question 2583: 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 2584: Factorize complete;y (4x+3y)² - (3x-2y)² Options:
  A) (x+5y)(7x+y)
  B) (x+5y)(7x-y)
  C) (x-5y)(7x+y)
  D) (x-5y)(7x-y)
  Show Answer
  The correct answer is A .
• Question 2585: A hunter 1.6 m tall, views a bird on top of a tree at an angle of 45 degrees. if the distance between the hunter and the tree is 10.4 m, find the height of the tree. Options:
  A) 9.0 m
  B) 12. 0 m
  C) 8.8 m
  D) 10.4 m
  Show Answer
  The correct answer is B .
• Question 2586: A binary operation Δ is defined by aΔb = a + b + 1 for any numbers a and b. Find the inverse of the real number 7 under the operation Δ, if the identity element is -1 Options:
  A) -7
  B) -9
  C) 5
  D) 9
  Show Answer
  The correct answer is B .
• Question 2587: A tax player is allowed $\frac{1}{8}$th of his income tax-free, and pays 20% on the remainder. If he pays ₦490.00 tax, what is his income? Options:
  A) ₦560.00
  B) ₦2,450.00
  C) ₦2,800.00
  D) ₦3,920.00
  Show Answer
  The correct answer is C .
• Question 2588:

  If y = 23${}_{\text{five}}$ + 101${}_{\text{three}}$, find y, leaving your answer in base two

  Options:
  A) 1110
  B) 10111
  C) 11101
  D) 111100
  Show Answer
  The correct answer is B .
• Question 2589:

  In triangle FGB, < G = 90°, < H = 60°, while in triangle XYZ, < X = 60° and < Y = 30°. Form XYZ write down the ratio equal to $\frac{FG}{FH}$

  Options:
  A) $\frac{YX}{ZX}$
  B) $\frac{YX}{YZ}$
  C) $\frac{ZX}{YZ}$
  D) $\frac{YZ}{XY}$
  Show Answer
  The correct answer is D .
• Question 2590:

  If P varies inversely as V and V varies directly as R², find the relationship between P and R given that R = 7 when P = 2.

  Options:
  A) P = 98R²
  B) PR² = 98
  C) P = $\frac{1}{98R^2}$
  D) P = $\frac{P{R}^2}{98}$
  Show Answer
  The correct answer is B .