Waec Mathematics Questions
Question 481:
A student found the approximate value of 0.02548 correct to two places of decimal instead of two significant figures. Find the percentage error.
- A 0%
- B 131/3%
- C 15 5/13%
- D 2/3%
- E 20%
Question 484:
Which of the following equations has its roots as 4 and -5?
- A X2 + 4x - 20 = 0
- B X2 + x + 20 = 0
- C X2 - x + 20 = 0
- D X2 + x - 20 = 0
- E X2 - x - 20 = 0
Question 485:
Solve the equations: 4x -y = 11; 5x + 2y = 4.
- A X = 6, y = 13
- B X = -2, y = -3
- C X = -2, y = 3
- D X = 2, y = -3
- E X = 2, y = 3.