Waec Mathematics 2014 Past Questions and Answers

Question 21:

• WAEC 2014

A box contains 13 currency notes, all of which are either N50 or N20 notes. The total value of the currency notes is N530. How many N50 notes are in the box?

A. 4
B. 6
C. 8
D. 9

Question 22:

• WAEC 2014

If x : y = 3 : 2 and y : z = 5 : 4, find the value of x in the ratio x : y : z

A. 8
B. 10
C. 15
D. 20

Question 23:

• WAEC 2014

Given that cos x = \(\frac{12}{13}\), evaluate \(\frac{1 - \tan x}{\tan x}\)

A. \(\frac{5}{13}\)
B. \(\frac{5}{7}\)
C. \(\frac{7}{5}\)
D. \(\frac{13}{5}\)

Question 24:

• WAEC 2014

approximate 0.0033780 to 3 significant figures

A. 338
B. 0.338
C. 0.00338
D. 0.003

Question 25:

• WAEC 2014

Simplify \(\frac{8^2 \times 4^n + 1}{2^{2n} \times 16}\)

A. 16
B. 8
C. 4
D. 1