Waec Mathematics Past Questions For Year 1993

Question 6

Convert 89\(_{10}\) to a number in base two.

waec 1993

  • A. 1101001
  • B. 1011001
  • C. 1001101
  • D. 101101
  • E. 11001
View Answer and Explanation

Question 7

Solve the inequality: 3m + 3 > 9

waec 1993

  • A. m > 2
  • B. m > 3
  • C. m>4
  • D. m>6
  • E. m>12
View Answer and Explanation

Question 8

Factorize 2x\(^2\) - 21x + 45

waec 1993

  • A. (2x - 9)(x - 5)
  • B. (2x-15)(x + 3)
  • C. (2x +15)(x - 3)
  • D. (2x -15(x - 3)
  • E. (2x - 9)(x + 5)
View Answer and Explanation

Question 9

Write as a single fraction: \(\frac{5}{6r} - \frac{3}{4r}\)

waec 1993

  • A. r/12
  • B. 12/r
  • C. 1/6r
  • D. r/6
  • E. 1/12r
View Answer and Explanation

Question 10

Solve the equation x\(^2\) - 2x - 3 = 0

waec 1993

  • A. (-3, 1)
  • B. (-1, -3)
  • C. (3,1)
  • D. (43, 0)
  • E. (-1, 3).
View Answer and Explanation