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Wednesday, 13 May 2026
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Mathematics Past Questions and Answers

Waec Mathematics Questions

Question 876:
Evaluate \((111_{two})^2 - (101_{two})^2\)
  • A 10two
  • B 100two
  • C 1100two
  • D 11000two
View Answer & Explanation
Question 877:
Given that x ≅ 0.0102 correct to 3 significant figures, which of the following cannot be the actual value of x?
  • A 0.01014
  • B 0.01021
  • C 0.01015
  • D 0.01016
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Question 878:
If \(\frac{3^{(1-n)}}{9^{-2n}}=\frac{1}{9}\) find n
  • A \(-\frac{3}{2}\)
  • B \(\frac{1}{3}\)
  • C -1
  • D -3
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Question 879:
Which of the following is/are not the interior angle(s) of a regular polygon? I.108° II. 116° III. 120°
  • A I only
  • B II only
  • C III only
  • D I and III only
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Question 880:
In a ∆ XYZ, /YZ/ = 6cm YXZ = 60o and XYZ is a right angle. Calculate /XZ/in cm, leaving your answer in surd form
  • A 2√3
  • B 4√3
  • C 6√3
  • D 12√3
View Answer & Explanation