Waec Mathematics 1999 Past Questions and Answers

Question 31:

• WAEC 1999

Water flows from a tap into cylindrical container at the rate 5πcm\(^3\) per second. If the radius of the container is 3cm, calculate the level of water in the container at the end of 9 seconds.

A. 2cm
B. 5cm
C. 8cm
D. 15cm

Question 32:

• WAEC 1999

Amina had m mangoes. She ate 3 and shared the remainder equally with her brother Uche. Each had at least 10. Which of the following inequalities represents the statements above.

A. \(\frac{m}{2}-3\le 10\)
B. \(\frac{m}{2}-3\ge 10\)
C. \(\frac{m-3}{2}\ge10\)
D. \(\frac{m-3}{2}\le10\)

Question 33:

• WAEC 1999

Which of the following pairs of inequalities is represented on the number line?

A. \(x
B. \(x\ge -2 and x>1\)
C. \(x\le -2 and x\ge1\)
D. \(x < -2 and x>1\)

Question 34:

• WAEC 1999

If \(x^2 +15x + 50 = ax^2 + bx + c = 0\). Which of the following statement is not true?

A. X = -5
B. X = 10
C. X + 10 = 0
D. Bc = 750

Question 35:

• WAEC 1999

The root of a quadratic equation in x, are -m and 2n. Find the equation

A. \(x^2 + x(m - 2n)-2mn=0\)
B. \(x^2 - x(m - 2n)-2mn=0\)
C. \(x^2 - x(m - 2n)+2mn=0\)
D. \(x^2 + x(m - 2n)+2mn=0\)