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 1231: If three numbers P, Q, R are in ratio 6 : 4 : 5, find the value of $\frac{3p-q}{4q+r}$ Options:
  A) $\frac{3}{2}$
  B) $\frac{2}{3}$
  C) 2
  D) 3
  E) 18
  Show Answer
  The correct answer is B .
• Question 1232:

  The mean of ten positive numbers is 16. When another number is added, the mean becomes 18. Find the eleventh number

  Options:
  A) 3
  B) 16
  C) 38
  D) 30
  Show Answer
  The correct answer is C .
• Question 1233:

  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 .
• Question 1234: If two smaller sides of a right angled triangle are 4cm and 5cm, find its area Options:
  A) 10 cm²
  B) 6 cm²
  C) 24 cm²
  D) 8 cm²
  Show Answer
  The correct answer is A .
• Question 1235: Simplify $\frac{3}{x}+\frac{15}{2y}+\frac{6}{xy}$ Options:
  A) $\frac{2y-5x}{4}$
  B) $\frac{9(2x-5x)}{x^2{y}^2}$
  C) $\frac{5x-2y}{2}$
  D) $\frac{c^2{y}^2}{18y-45x}$
  E) $\frac{4}{2y-5x}$
  Show Answer
  The correct answer is A .
• Question 1236: The locus of a point which is 5 cm from the line LM is a Options:
  A) line distance 10 cm from LM and parallel to LM
  B) pair of line on opposite sides of LM and parallel to it, each distance 5 cm from LM
  C) line parallel to LM and 5 cm from LM
  D) pair of parallel lines on one side of LM and parallel to LM
  Show Answer
  The correct answer is B .
• Question 1237: Convert 3.1415926 to 5 decimal places Options:
  A) 3.14160
  B) 3.14159
  C) 0.31415
  D) 3.14200
  Show Answer
  The correct answer is B .
• Question 1238: If 2₉ x (3Y)₉ = 3₅ x (3Y)₅, find the value of Y. Options:
  A) 4
  B) 3
  C) 2
  D) 1
  Show Answer
  The correct answer is D .
• Question 1239: The time taken to do a piece of work is inversely proportional to the number of men employed. If it takes 30 men to do a piece of work in 6 days, how many men are required to do the work in 4 days? Options:
  A) 20
  B) 35
  C) 45
  D) 60
  Show Answer
  The correct answer is C .
• Question 1240:

  Let P = {1, 2, u, v, w, x}; Q = {2, 3, u, v, w, 5, 6, y} and R = {2, 3, 4, v, x, y}.

  Determine (P-Q) ∩ R

  Options:
  A) {1, x}
  B) {x y}
  C) {x}
  D) ɸ
  Show Answer
  The correct answer is C .