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Mathematics 1999 WAEC Past Questions

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31

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 & Discuss WAEC 1999
32

Which of the following pairs of inequalities is represented on the number line?

  • A. \(x<-2 and x\ge1\)
  • B. \(x\ge -2 and x>1\)
  • C. \(x\le -2 and x\ge1\)
  • D. \(x< -2 and x>1\)
View Answer & Discuss (4) WAEC 1999
33

If \(x^2 +15x + 50 = ax^2 + bx + c = 0\). Which of the following statement is not true?

  • A. x = -5
  • B. x = 10
  • C. x + 10 = 0
  • D. bc = 750
View Answer & Discuss (8) WAEC 1999
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34

The root of a quadratic equation in x, are -m and 2n. Find the equation

  • A. \(x^2 + x(m - 2n)-2mn=0\)
  • B. \(x^2 - x(m - 2n)-2mn=0\)
  • C. \(x^2 - x(m - 2n)+2mn=0\)
  • D. \(x^2 + x(m - 2n)+2mn=0\)
View Answer & Discuss (11) WAEC 1999
35

A survey shows that 28% of all the men in a village wear size 9 shoes. What is the probability that a man selected at random in the village wears size 9 shoes?

  • A. \(\frac{7}{25}\)
  • B. \(\frac{41}{50}\)
  • C. \(\frac{1}{2}\)
  • D. 1
View Answer & Discuss (3) WAEC 1999
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