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Mathematics 2015 WAEC Past Questions

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11

Adding 42 to a given positive number gives the same result as squaring the number. Find the number

  • A. 14
  • B. 13
  • C. 7
  • D. 6
View Answer & Discuss (3) WAEC 2015
12
Ada draws the graph of y = x2 - x - 2 and y = 2x - 1 on the same axes. Which of these equations is she solving?
  • A. x2 - x - 3 = 0
  • B. x2 - 3x - 1 = 0
  • C. x2 - 3x - 3 = 0
  • D. x2 + 3x - 1 = 0
View Answer & Discuss (2) WAEC 2015
13
The volume of a cone of height 3cm is 38\(\frac{1}{2}\)cm3. Find the radius of its base. [Take \(\pi = \frac{22}{7}\)]
  • A. 3.0cm
  • B. 3.5cm
  • C. 4.0cm
  • D. 4.5cm
View Answer & Discuss WAEC 2015
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14
The dimension of a rectangular tank are 2m by 7m by 11m. If its volume is equal to that of a cylindrical tank of height 4cm, calculate the base radius of the cylindrical tank. [Take \(\pi = \frac{22}{7}\)]
  • A. 14cm
  • B. 7m
  • C. 3\(\frac{1}{2}\)m
  • D. 1\(\frac{3}{4}\)m
View Answer & Discuss WAEC 2015
15

In the diagram, O is the centre. If PQ//RS and ∠ONS = 140°, find the size of ∠POM.

  • A. 40o
  • B. 50o
  • C. 60o
  • D. 80o
View Answer & Discuss (6) WAEC 2015
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