Waec Mathematics Past Questions and Answers

Question 1741:

• 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 1742:

• 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\(\sqrt{3} + 4\)

Question 1743:

• WAEC 2017

Three exterior angles of a polygon are 30\(^o\), 40\(^o\) and 60\(^o\). If the remaining exterior angles are 46\(^o\) each, name the polygon.

A. Decagon
B. Nonagon
C. Octagon
D. Hexagon

Question 1744:

• WAEC 2017

Simplify the expression \(\frac{a^2 b^4 - b^2 a^4}{ab(a + b)}\)


A. \(a^2 - b^2\)
B. \(b^2 - a^2\)
C. \(a^2b - ab^2\)
D. \(ab^2 - a^2b\)

Question 1745:

• WAEC 2017

Find the 6th term of the sequence \(\frac{2}{3} \frac{7}{15} \frac{4}{15}\),...

A. -\(\frac{1}{3}\)
B. -\(\frac{1}{5}\)
C. -\(\frac{1}{15}\)
D. \(\frac{1}{9}\)