Waec Mathematics 2000 Past Questions and Answers

Question 6:

• WAEC 2000

What fraction must be subtracted from the sum of \(2\frac{1}{6}\) and \(2\frac{7}{12}\) to give \(3\frac{1}{4}\)?

A. \(\frac{1}{3}\)
B. \(\frac{1}{2}\)
C. \(1\frac{1}{6}\)
D. \(1\frac{1}{2}\)

Question 7:

• WAEC 2000

Simplify \(\left(\frac{16}{81}\right)^{-\frac{3}{4}}\times \sqrt{\frac{100}{81}}\)

A. \(\frac{80}{243}\)
B. \(\frac{1}{64}\)
C. \(\frac{25}{6}\)
D. \(\frac{15}{4}\)

Question 8:

• WAEC 2000

Which of the following numbers is perfect cube?

A. 350
B. 504
C. 950
D. 1728

Question 9:

• WAEC 2000

If \(104_x = 68\), find the value of x

A. 5
B. 7
C. 8
D. 9

Question 10:

• WAEC 2000

The ages of three men are in the ratio 3:4:5. If the difference between the ages of the oldest and youngest is 18 years, find the sum of the ages of the three men

A. 45 years
B. 72 years
C. 108 years
D. 216 years