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Mathematics 2005 WAEC Past Questions

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31
A train moving at a uniform speed covers 36km in 21 minutes. How long does it take to cover 60km?
  • A. 35 mins
  • B. 40 mins
  • C. 45 mins
  • D. 90 mins
View Answer & Discuss (1) WAEC 2005
32
The salary of a man was increased in the ratio 40:47. calculate the percentage increase in the salary
  • A. 85.1%
  • B. 58.5%
  • C. 17.5%
  • D. 14.9%
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33
A regular polygon has 9 sides. What is the size of one of its exterior angles?
  • A. 20o
  • B. 40o
  • C. 90o
  • D. 140o
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34

Simplify: \(\frac{2}{3xy} - \frac{3}{4yz}\)

  • A. \(\frac{2-x}{12xyz}\)
  • B. \(\frac{2z-3x}{12xyz}\)
  • C. \(\frac{4z-3x}{12xyz}\)
  • D. \(\frac{8z-9x}{12xyz}\)
View Answer & Discuss (2) WAEC 2005
35

The total surface area of the walls of a room 7m long, 5m wide and xm high is 96m2. Find the value of x

  • A. \(\frac{2}{3}\)
  • B. 2
  • C. 4
  • D. 8
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