Mathematics 2009 WAEC Past Questions

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A bucket holds 10 litres of water. How many buckets of water will fill a reservoir of size 8m x 7m x 5m.(1 litre = 1000cm³)`

A. 28
B. 280
C. 2800
D. 28000

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A box contains black, white and red identical balls. The probability of picking a black ball at random from the box is \(\frac{3}{10}\) and the probability of picking a white ball at random is \(\frac{2}{5}\). If there are 30 balls in the box, how many of them are red?

A. 3
B. 7
C. 9
D. 12

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Simplify; \(\frac{1}{2}\sqrt{32} - \sqrt{18} + \sqrt{2}\)

A. zero
B. \(\sqrt{2}\)
C. 2\(\sqrt{2}\)
D. 4\(\sqrt{2}\)

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The angles of triangle are (x + 10)^o, (2x - 40)^o and (3x - 90)^o. Which of the following accurately describes the triangle?

A. it is a scalene triangle
B. it is right angled isosceles triangle
C. t is an equilateral triangle
D. It is an isosceles triangle but not right angled

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Simplify (x - 3y)² - (x + 3y)²

A. 2(x + 3y)
B. (2x - 3y)
C. -12xy
D. 6xy

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Mathematics 2009 WAEC Past Questions

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