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Saturday, 13 June 2026
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Mathematics Past Questions and Answers

Waec Mathematics Questions

Question 636:
Two numbers 24\(_{x}\) and 31\(_y\) are equal in value when converted to base ten. Find the equation connecting x and y
  • A 2x = 3(y - 1)
  • B 4x - y = 1
  • C 3y + 2x = 3
  • D 3y = 2 (x + 3)
View Answer & Explanation
Question 637:
A car travel at x km per hour for 1 hour and at y km per hour for 2 hours. Find its average speed
  • A \(\frac{2x + 2y}{3}kmh^{-1}\)
  • B \(\frac{x + y}{3}kmh^{-1}\)
  • C \(\frac{x + 2y}{3}kmh^{-1}\)
  • D \(\frac{2x + y}{3}kmh^{-1}\)
View Answer & Explanation
Question 638:
The height and base of a triangle are in ratio 1:3 respectively. If the area of the triangle is 216 cm\(^2\), find the length of the base.
  • A 24cm
  • B 36cm
  • C 72cm
  • D 144cm
View Answer & Explanation
Question 639:
Water flows from a tap into cylindrical container at the rate 5πcm\(^3\) per second. If the radius of the container is 3cm, calculate the level of water in the container at the end of 9 seconds.
  • A 2cm
  • B 5cm
  • C 8cm
  • D 15cm
View Answer & Explanation
Question 640:
Amina had m mangoes. She ate 3 and shared the remainder equally with her brother Uche. Each had at least 10. Which of the following inequalities represents the statements above.
  • A \(\frac{m}{2}-3\le 10\)
  • B \(\frac{m}{2}-3\ge 10\)
  • C \(\frac{m-3}{2}\ge10\)
  • D \(\frac{m-3}{2}\le10\)
View Answer & Explanation