Waec Mathematics Past Questions For Year 2016
Question 41
A bag contains 5 red and 4 blue identical balls. Id two balls are selected at random from the bag, one after the other, with replacement, find the probability that the first is red and the second is blue
- A. \(\frac{2}{9}\)
- B. \(\frac{5}{18}\)
- C. \(\frac{20}{81}\)
- D. \(\frac{5}{9}\)
Question 42
In the diagram, O is the centre of the circle, < QPS = 100o, < PSQ = 60o and < QSR. Calculate < SQR
- A. 20o
- B. 40o
- C. 60o
- D. 80o
Question 43
Simplify \(\frac{(p - r)^2 - r^2}{2p^2 - 4pr}\)
- A. \(\frac{1}{2}\)
- B. p - 2r
- C. \(\frac{1}{p - 2r}\)
- D. \(\frac{2p}{p - 2r}\)
Question 44
An object is 6m away from the base of a mast. If the angle of depression of the object from the top of the mast is 50o, find, correct to 2 decimal places, the height of the mast.
- A. 8.60m
- B. 7.83m
- C. 7.51m
- D. 7.15m
Question 45
In the diagram MN is a chord of a circle KMN centre O and radius 10cm. If < MON = 140o, find, correct to the nearest cm, the length of the chord MN.
- A. 19cm
- B. 18cm
- C. 17cm
- D. 12cm
