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Mathematics 1998 WAEC Past Questions

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26

The following numbers represent at a set of scores for a class of 32 students, where the maximum score possible was 12, 6, 5, 9, 4, 4, 8, 7, 5, 6, 3, 2, 5, 4, 6, 9, 10, 4, 3, 2, 3, 4, 6, 8, 7, 4, 2, 1, 8, 7, 7, 6, 11. What is the percentage of the class, correct to the nearest whole number, scored above 6?

  • A. 34%
  • B. 35%
  • C. 37%
  • D. 39%
  • D. 36%
  • E. 38%
View Answer & Discuss (5) WAEC 1998
27

A die with faces numbered 1 to 6 is rolled once. What is the probability of obtaining 4?

  • A. \(\frac{1}{36}\)
  • B. \(\frac{1}{6}\)
  • C. \(\frac{1}{3}\)
  • D. \(\frac{1}{2}\)
  • E. \(\frac{2}{3}\)
View Answer & Discuss (8) WAEC 1998
28

In the diagram above, the area of triangle ABC is 35cm\(^2\). Find the value of y

  • A. 5cm
  • B. 10cm
  • C. 17.5cm
  • D. 28cm
  • E. 70cm
View Answer & Discuss (2) WAEC 1998
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29

The graph is that of the quadratic expression

  • A. \(y=x^2 + x - 2\)
  • B. \(y=x^2 - x + 2\)
  • C. \(y=x^2 - x - 2\)
  • D. \(y=x + x + 2\)
  • E. \(y=x^2 - 2 x - 2\)
View Answer & Discuss (4) WAEC 1998
30

The values of x when y = -1 are approximately

  • A. -10 and 2.0
  • B. -1.3 and 2.3
  • C. -0.6 and 2.6
  • D. -0.6 and 1.6
  • E. 1.6 and 1.6
View Answer & Discuss (3) WAEC 1998
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