Mathematics 2013 Waec Past Questions and Answers

Question 1 :

• WAEC 2013

Multiply 2.7 x 10^-4 by 6.3 x 10⁶ and leave your answers in standard form

A. 1.7 x 10³
B. 1.70 x 10³
C. 1.701 x 10³
D. 17.01 x 10³

Question 2 :

• WAEC 2013

Multiply 2.7 x 10^-4 by 6.3 x 10⁶ and leave your answers in standard form

A. 1.7 x 10³
B. 1.70 x 10³
C. 1.701 x 10³
D. 17.01 x 10³

Question 3 :

• WAEC 2013

If 9^{(2 - x)} = 3, find x

A. 1
B. \(\frac{3}{2}\)
C. 2
D. \(\frac{5}{2}\)

Question 4 :

• WAEC 2013

In what number base is the addition 465 + 24 + 225 = 1050?

A. Ten
B. Nine
C. Eight
D. Seven

Question 5 :

• WAEC 2013

Simplify \(\frac{1\frac{7}{8} \times 2\frac{2}{5}}{6\frac{3}{4} \div \frac{3}{4}}\)

A. 9
B. 4\(\frac{1}{2}\)
C. 2
D. \(\frac{1}{2}\)