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Saturday, 13 June 2026
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Mathematics Past Questions and Answers

Waec Mathematics Questions

Question 671:
Simplify \(\left(\frac{16}{81}\right)^{-\frac{3}{4}}\times \sqrt{\frac{100}{81}}\)
  • A \(\frac{80}{243}\)
  • B \(\frac{1}{64}\)
  • C \(\frac{25}{6}\)
  • D \(\frac{15}{4}\)
View Answer & Explanation
Question 672:
Which of the following numbers is perfect cube?
  • A 350
  • B 504
  • C 950
  • D 1728
View Answer & Explanation
Question 673:
If \(104_x = 68\), find the value of x
  • A 5
  • B 7
  • C 8
  • D 9
View Answer & Explanation
Question 674:
The ages of three men are in the ratio 3:4:5. If the difference between the ages of the oldest and youngest is 18 years, find the sum of the ages of the three men
  • A 45 years
  • B 72 years
  • C 108 years
  • D 216 years
View Answer & Explanation
Question 675:
Given that \(log_4 x = -3\), find x.
  • A \(\frac{1}{81}\)
  • B \(\frac{1}{64}\)
  • C 64
  • D 81
View Answer & Explanation