Waec Mathematics Past Questions and Answers

Question 546:

• WAEC 1998

A piece of cloth was measured as 6.10m. If the actual length of the cloth is 6.35, find the percentage error, correct to 2 decimal places

A. 3.05%
B. 3.95%
C. 15.00%
D. 25.00%
E. 39.30%

Question 547:

• WAEC 1998

Simplify \(\frac{8^{\frac{2}{3}}*27^{\frac{-1}{3}}}{64^{\frac{1}{3}}}\)

A. -3
B. \(\frac{1}{9}\)
C. \(\frac{1}{3}\)
D. \(\frac{27}{8}\)
E. 4

Question 548:

• WAEC 1998

Solve the equation 5x² - 4x - 1 = 0

A. -1, 1/5
B. -1, -1/5
C. 1, 1/5
D. 1, -1/5
E. -1, 5

Question 549:

• WAEC 1998

p and q are two positive numbers such that p > 2q. Which one of the following statements is not true?

A. -p < -2q
B. -p > -2q
C. -q < 2p
D. Q < 1/2p
E. P² > 2q²

Question 550:

• WAEC 1998

For what value of x is the expression
x - 5/x² - 2x - 3
not defined?

A. 3, 1
B. -1, -3
C. -1, 3
D. 3, -2
E. 1, -3