Waec Mathematics 2017 Past Questions and Answers

Question 21:

• WAEC 2017

A bearing of 320\(^o\) expressed as a compass bearing is

A. N 50\(^o\) W
B. N 40\(^o\) W
C. N 50\(^o\) E
D. N 40\(^o\) E

Question 22:

• WAEC 2017

Given that cos 30\(^o\) = sin 60\(^o\) = \(\frac{3}{2}\) and sin 30\(^o\) = cos 60\(^o\) = \(\frac{1}{2}\), evaluate \(\frac{tan 60^o - q}{1 - tan 30^o}\)

A. \(\sqrt{3 - 2}\)
B. 2 - \(\sqrt{3}\)
C. \(\sqrt{3}\)
D. -2

Question 23:

• WAEC 2017

The average age of a group of 25 girls is 10year. If one girl, aged 12 years and 4 months joins the group, find the new average age of the group

A. 10.1 years
B. 9.3 years
C. 8.7 years
D. 8 . 3 years

Question 24:

• WAEC 2017

In what number base was the addition 1 + nn = 100, where n > 0, done?

A. N - 1
B. N + 2
C. N + 1
D. N

Question 25:

• WAEC 2017

Simplify; \(\sqrt{2}(\sqrt{6} + 2\sqrt{2}) - 2\sqrt{3}\)

A. 4
B. \(\sqrt{3} + 4\)
C. 4 \(\sqrt{2}\)
D. 4\(\sqrt{3} + 4\)