Waec Mathematics 1999 Past Questions and Answers

Question 1:

• WAEC 1999

The side of a rhombus is 10cm long, correct to the nearest whole number. Between what limits should the perimeter P lie?

A. 39cm ≤ P ≤41cm
B. 38cm ≤ P < 42cm
C. 38.5 ≤ P ≤ 41.5cm
D. 38.5 ≤ P ≤ 40cm

Question 2:

• WAEC 1999

The side of a rhombus is 10cm long, correct to the nearest whole number. Between what limits should the perimeter P lie?

A. 39cm ≤ P ≤41cm
B. 38cm ≤ P < 42cm
C. 38.5 ≤ P ≤ 41.5cm
D. 38.5 ≤ P ≤ 40cm

Question 3:

• WAEC 1999

Simplify log\(_7\) 8 - log\(_7\) 2 + log\(_7\) 4.

B. \(2log_7 2\)
C. \(3log_7 2\)
D. \(4log_7 2\)

Question 4:

• WAEC 1999

If \(K\sqrt{28}+\sqrt{63}-\sqrt{7}=0\), find K.

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

Question 5:

• WAEC 1999

From a set \(A = [3, \sqrt{2}, 2\sqrt{3}, \sqrt{9}, \sqrt{7}]\), a number is selected at random. Find the probability that is a rational number

A. \(\frac{1}{5}\)
B. \(\frac{2}{5}\)
C. \(\frac{3}{5}\)
D. \(\frac{4}{5}\)