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Saturday, 13 June 2026
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Mathematics Past Questions and Answers

Waec Mathematics Questions

Question 821:
The volume of a cylinder of radius 14cm is 210cm3. What is the curved surface area of the cylinder?
  • A 15cm2
  • B 30cm2
  • C 616cm2
  • D 1262cm2
View Answer & Explanation
Question 822:
Simplify \(3\sqrt{12} + 10\sqrt{3} - \frac{6}{\sqrt{3}}\)
  • A \(7\sqrt{3}\)
  • B \(10\sqrt{3}\)
  • C \(14\sqrt{3}\)
  • D \(18\sqrt{3}\)
View Answer & Explanation
Question 823:
Factorize m(2a-b)-2n(b-2a)
  • A (2a-b)(2n-m)
  • B (2a+b)(m-2n)
  • C (2a-b)(m+2n)
  • D (2a-b)(m-2n)
View Answer & Explanation
Question 824:
If q oranges are sold for t Naira, how many oranges can be bought for p naira?
  • A \(\frac{p}{2}t\)
  • B \(\frac{qt}{p}\)
  • C \(\frac{q}{pt}\)
  • D \(\frac{pq}{t}\)
View Answer & Explanation
Question 825:
In the diagram, QRT is a straight line. If angle PTR = 90°, angle PRT = 60°, angle PQR = 30° and |PQ| = \(6\sqrt{3}cm\), calculate |RT|
  • A 0.3cm
  • B \(\frac{\sqrt{3}}{2}cm\)
  • C 3cm
  • D \(3\sqrt{3}cm\)
View Answer & Explanation