Waec Mathematics Past Questions For Year 2005
Question 31
What is the total surface area of a closed cylinder of height 10cm and diameter 7cm? [Take \(\pi = \frac{22}{7}\)]
- A. 77cm2
- B. 227cm2
- C. 297cm2
- D. 374cm2
Question 32
For what values of y is the expression \(\frac{6y-1}{y^2 - y-6}\)
- A. \(\frac{1}{6}, \frac{1}{4}\)
- B. 3, -2
- C. -3, 2
- D. 0,1
Question 33
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
Question 34
Simplify: \(\frac{2}{3xy} - \frac{3}{4yz}\)
- A. \(\frac{2-x}{12xyz}\)
- B. \(\frac{2z-3x}{12xyz}\)
- C. \(\frac{4z-3x}{12xyz}\)
- D. \(\frac{8z-9x}{12xyz}\)
Question 35
A regular polygon has 9 sides. What is the size of one of its exterior angles?
- A. 20o
- B. 40o
- C. 90o
- D. 140o
