Waec Mathematics Past Questions For Year 2017
Question 26
If x = \(\frac{2}{3}\) and y = - 6, evaluate xy - \(\frac{y}{x}\)
- A. 0
- B. 5
- C. 8
- D. 9
Question 27
Given that a = log 7 and b = \(\log\) 2, express log 35 in terms of a and b.
- A. a + b + 1
- B. ab - 1
- C. a - b + 1
- D. b - a + 1
Question 28
If M = {x : 3 \(\leq\) x < 8} and N = {x : 8 < x \(\leq\) 12}, which of the following is true?
i. 8 \(\in\) M \(\cap\) N
ii. 8 \(\in\) M \(\cup\) N
iii. M \(\cap\) N = \(\varnothing\)
- A. iii only
- B. i and ii
- C. ii and iii only
- D. i, ii and iii
Question 29
Water flows out of a pipe at a rate of 40\(\pi cm^2\) per seconds into an empty cylinder container of base radius 4cm. Find the height of water in the container after 4 seconds.
- A. 10 cm
- B. 14 cm
- C. 16 cm
- D. 20 cm
Question 30
An arc of a circle of radius 7.5cm is 7.5cm long. Find, correct to the nearest degree, the angle which the arc subtends at the centre of the circle. [Take \(\pi = \frac{22}{7}\)]
- A. 29\(^o\)
- B. 57\(^o\)
- C. 65\(^o\)
- D. 115\(^o\)
