Waec Mathematics 2012 Past Questions and Answers

Question 11:

• WAEC 2012

Make p the subject of the relation: q = \(\frac{3p}{r} + \frac{s}{2}\)

A. P = \(\frac{2q - rs}{6}\)
B. P = 2qr - sr - 3
C. P = \(\frac{2qr - s}{6}\)
D. P = \(\frac{2qr - rs}{6}\)

Question 12:

• WAEC 2012

If x + y = 2y - x + 1 = 5, find the value of x

A. 3
B. 2
C. 1
D. -1

Question 13:

• WAEC 2012

The sum of 12 and one third of n is 1 more than twice n. Express the statement in the form of an equation

A. 12n - 6 = 0
B. 3n - 12 = 0
C. 2n - 35 = 0
D. 5n - 33 = 0

Question 14:

• WAEC 2012

Solve the inequality: \(\frac{-m}{2} - \frac{5}{4} \geq \frac{5m}{12} - \frac{7}{6}\)

A. M \(\leq \frac{5}{4}\)
B. M \(\geq \frac{5}{4}\)
C. M \(\leq - \frac{1}{11}\)
D. M \(\geq - \frac{1}{11}\)

Question 15:

• WAEC 2012

The curved surface area of a cylindrical tin is 704cm². If the radius of its base is 8cm, find the height. [Take \(\pi = \frac{22}{7}\)]`

A. 14cm
B. 9cm
C. 8cm
D. 7cm