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: Given: p = {1, 3, 5, 7, 9, 11} and Q = {2, 4, 6, 8, 10, 12}. Determine the relationship between P and Q Options:
  A) P = Q
  B) P $\supset$ Q
  C) p ∩ Q = $\varphi$
  D) Q ∪ P
  Show Answer
  The correct answer is C .
• Question 1232:

  

  In the diagram, PQ and RS are chords of a circle centre O which meet at T outside the circle. If TP = 24cm. TQ = 8cm and TS = 12cm, find TR.

  Options:
  A) 16cm
  B) 14cm
  C) 12cm
  D) 8cm
  Show Answer
  The correct answer is A .
• Question 1233:

  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 .
• Question 1234:

  A bottle of malt costs three times as much as a bottle of Mirinda. If 5 bottles of malt and 4 bottles of Mirinda cost N380.00 altogether, how much does a bottle of malt cost?

  Options:
  A) N90.00
  B) N80.00
  C) N60.00
  D) N40.00
  E) N20.00
  Show Answer
  The correct answer is C .
• Question 1235: The binary operation $\oplus$ is defined by x $\ast$ y = xy - y - x for all real values x and y. If x $\ast$ 3 = 2$\ast$, find x Options:
  A) -1
  B) 4
  C) 1
  D) 5
  Show Answer
  The correct answer is C .
• Question 1236:

  

  The shaded area represents

  Options:
  A) x $\le$ 0, y $\le$ 0, 2y + 3x $\le$ 6
  B) x $\ge$ 0, y $\ge$ 3, 3x + 2y $\ge$ 6
  C) x $\ge$ 2, y $\ge$ 0, 3x + 2y $\le$ 6
  D) x $\ge$ 0, y $\ge$ 0, 3x + 2y $\ge$ 6
  Show Answer
  The correct answer is A .
• Question 1237:

  

  Use the cumulative frequency curve to answer the question.
  What is the 80th percentile?

  Options:
  A) 45.5
  B) 46.5
  C) 47.5
  D) 48.5
  Show Answer
  The correct answer is C .
• Question 1238: If the variance of 3+x, 6, 4, x and 7-x is 4 and the mean is 5, find the standard deviation Options:
  A) $\sqrt{3}$
  B) 2
  C) 3
  D) $\sqrt{2}$
  Show Answer
  The correct answer is B .
• Question 1239: Simplify $\frac{x}{x+y}$ + $\frac{y}{x-y}$ - $\frac{x^2}{x^2-y^2}$ Options:
  A) $\frac{x}{x^2-y^2}$
  B) $\frac{y^2}{x^2-y^2}$
  C) $\frac{x^2}{x^2-y^2}$
  D) $\frac{y}{x^2-y^2}$
  Show Answer
  The correct answer is B .
• Question 1240: P is a point on one side of the straight line UV and P moves in the same direction as UV. If the straight line ST is on the locus of P and angle VUS = 60°, find angle UST. Options:
  A) 310°
  B) 130°
  C) 80°
  D) 50°
  Show Answer
  The correct answer is B .