Waec Mathematics Past Questions and Answers

Question 556:

• WAEC 1998

Given that \(\frac{6x-y}{x+2y}=2\), find the value of \(\frac{x}{y}\)

A. \(\frac{3}{8}\)
B. \(\frac{5}{8}\)
C. \(\frac{4}{5}\)
D. \(\frac{5}{4}\)
E. \(\frac{8}{5}\)

Question 557:

• WAEC 1998

The radius of a geographical globe is 60cm. Find the length of the parallel of latitude 60^oN

A. \(66\pi cm\)
B. \(60\pi cm\)
C. \(30\pi cm\)
D. \(15\pi cm\)
E. \(6\pi cm\)

Question 558:

• WAEC 1998

In the diagram above, O is the center if the two concentric circle of radii 13cm and 10cm respectively. Find the area of the shaded portion in the sector with angle 120⁰ at the center

A. \(\frac{1}{3}\pi cm^2\)
B. \(\pi cm^2\)
C. \(3\pi cm^2\)
D. \(23\pi cm^2\)
E. \(46\pi cm^2\)

Question 559:

• WAEC 1998

Express as a single fraction: \(\frac{x}{x-2}-\frac{x+2}{x+3}\)

A. \(\frac{2x^2 - 3x - 4}{(x-2)(x+3)}\)
B. \(\frac{2x^2 + 3x - 4}{(x-2)(x+3)}\)
C. \(\frac{2}{(x-2)(x+3)}\)
D. \(\frac{ 3x + 4}{(x-2)(x+3)}\)
E. \(\frac{3x - 4}{(x-2)(x+3)}\)

Question 560:

• WAEC 1998

The following numbers represent at a set of scores for a class of 32 students, where the maximum score possible was 12, 6, 5, 9, 4, 4, 8, 7, 5, 6, 3, 2, 5, 4, 6, 9, 10, 4, 3, 2, 3, 4, 6, 8, 7, 4, 2, 1, 8, 7, 7, 6, 11. What is the percentage of the class, correct to the nearest whole number, scored above 6?

A. 34%
B. 35%
C. 37%
D. 38%
E. 50%