Waec Mathematics Past Questions For Year 2005
Question 36
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%
Question 37
XOY is a real sector of a circle center O of radius 3.5cm which subtends an angle of 144o at the center. Calculate, in term of ϖ, the area of the sector
- A. 1.4Ï–cm2
- B. 2.8Ï–cm2
- C. 4.9Ï–cm2
- D. 9.8Ï–cm2
Question 38
The angle of elevation of the top of a cliff 15 meters high from a landmark is 60o. How far is the landmark from the foot of the cliff? Leave your answer in surd form
- A. \(15\sqrt{3}m\)
- B. \(15\sqrt{2}m\)
- C. \(10\sqrt{3}m\)
- D. \(5\sqrt{3}m\)
Question 39
In the diagram PQRS is a circle, |PT| = |QT| and ∠QPT = 70o what is the size of ∠PRS?
- A. 40o
- B. 70o
- C. 80o
- D. 140o
Question 40
What is the equation of the curve?
- A. \(y=x^2+6x+4\)
- B. \(y=x^2-5x-4\)
- C. \(y=x^2-5x+4\)
- D. \(y=x^2+5x-4\)
