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 1341:

  

  The graph shows the cumulative frequency of the distribution of masses of fertilizer for 48 workers in one institution. Which of the following gives the inter-quartile range?

  Options:
  A) $\frac{1}{2}(Q_3-Q_1)$
  B) Q₃ - Q₂
  C) Q₃ - Q₂
  D) Q₃ - Q₁
  Show Answer
  The correct answer is A .
• Question 1342: Determine the maximum value of y = 3x² - x³ Options:
  A) zero
  B) 2
  C) 4
  D) 6
  Show Answer
  The correct answer is C .
• Question 1343: If p varies inversely as the cube of q and q varies directly as the square of r, what is the relationship between p and r? Options:
  A) p varies directly as r³
  B) p varies inversely as r⁶
  C) p varies inversely as ⁶√P
  D) p varies directly as r⁶
  Show Answer
  The correct answer is C .
• Question 1344:

  

  In the figure above, TZ is tangent to the circle QPZ. Find x if TZ = 6 units and PQ = 9 units

  Options:
  A) 3
  B) 4
  C) 5
  D) 6
  Show Answer
  The correct answer is B .
• Question 1345: Substract 16418₉ from 18630₉ Options:
  A) 1121₉
  B) 2112₉
  C) 2113₉
  D) 2211₉
  Show Answer
  The correct answer is D .
• Question 1346: In triangle XYZ, ∠XYZ = 15${}^{\circ }$, ∠XZY = 45${}^{\circ }$ and lXYl = 7 cm. Find lYZl. Options:
  A) 14√2 cm
  B) $7\left(\frac{\sqrt{6}}{2}\right)$
  C) 7√2 cm
  D) 7 cm
  Show Answer
  The correct answer is B .
• Question 1347:

  Evaluate ${1011}_{two}$ + ${1101}_{two}$ + ${1001}_{two}$ - ${111}_{two}$

  Options:
  A) 10001${}_{two}$
  B) 11001${}_{two}$
  C) 110001${}_{two}$
  D) 11010${}_{two}$
  E) 10001${}_{two}$
  Show Answer
  The correct answer is D .
• Question 1348:

  

  The diagram above is the graph of the function f(x). Determine the range of values of x for which f(x) $\ge$ 0.

  Options:
  A) x $\ge$ 2
  B) 0 $\ge$ x $\ge$ 2
  C) -2 $\ge$ x $\ge$ 0, x $\le$ 2
  D) x $\ge$ -2, 0 $\ge$ x $\ge$ 2
  Show Answer
  The correct answer is C .
• Question 1349: A sector of a circle of radius 7.2cm which subtends an angle of 300${}^{\circ }$ at the centre is used to form a cone. What is the radius of the base of the cone? Options:
  A) 6cm
  B) 7cm
  C) 8cm
  D) 9cm
  E) 5cm
  Show Answer
  The correct answer is A .
• Question 1350: Differentiate (cos θ - sin θ)² Options:
  A) -2 cos 2θ
  B) -2 sin2θ
  C) 1 - 2 cos 2θ
  D) 1 - 2 sin 2θ
  Show Answer
  The correct answer is A .