Waec Mathematics 2012 Past Questions and Answers

Question 26:

• WAEC 2012

Alfred spent \(\frac{1}{4}\) of his money on food, \(\frac{1}{3}\) on clothing and save the rest. If he saved N72,20.00, how much did he spend on food?

A. N43,200.00
B. N43,000.00
C. N42,200.00
D. N40,000.00

Question 27:

• WAEC 2012

Solve (\(\frac{27}{125}\))^{-\(\frac{1}{3}\)} x (\(\frac{4}{9}\))^{\(\frac{1}{2}\)}

A. \(\frac{10}{9}\)
B. \(\frac{9}{10}\)
C. \(\frac{2}{5}\)
D. \(\frac{12}{125}\)

Question 28:

• WAEC 2012

The sum of the interior angles of regular polygon is 1800^o. How many sides has the polygon?

A. 16
B. 12
C. 10
D. 8

Question 29:

• WAEC 2012

Find the coefficient of m in the expression of (\(\frac{m}{2} - 1 \frac{1}{2}\)) (m + \(\frac{2}{3}\))

A. -\(\frac{1}{6}\)
B. - \(\frac{1}{2}\)
C. -1
D. -1\(\frac{1}{6}\)

Question 30:

• WAEC 2012

The volume of a cuboid is 54cm3. If the length, width and height of the cuboid are in the ratio 2:1:1 respectively, find its total surface area

A. 108cm²
B. 90cm²
C. 80cm²
D. 72cm²