Waec Mathematics 2017 Past Questions and Answers

Question 11:

• WAEC 2017

One factor of \(7x^2 + 33x - 10\) is

A. 7x + 5
B. X - 2
C. 7x - 2
D. X - 5

Question 12:

• WAEC 2017

Solve: - \(\frac{1}{4}\) < \(\frac{3}{4}\) (3x - 2) < \(\frac{1}{2}\)

A. -\(\frac{5}{9}\) < x
B. -\(\frac{8}{9}\) < x
C. -\(\frac{8}{9}\) < x
D. -\(\frac{7}{9}\) < x

Question 13:

• WAEC 2017

Simplify; 3x - (p - x) - (r - p)

A. 2x - r
B. 2x + r
C. 4x - r
D. 2x - 2p - r

Question 14:

• WAEC 2017

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\(^o\)

Question 15:

• WAEC 2017

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