Search SchoolNGR

Mathematics Past Questions and Answers

Waec Mathematics Questions

Question 641:

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

SchoolNGR Classroom

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

View Answer & Explanation

Question 642:

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

SchoolNGR Classroom

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

View Answer & Explanation

Question 643:

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

SchoolNGR Classroom

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 \(x^2 + x(m - 2n)+2mn=0\)

View Answer & Explanation

Question 644:

A survey shows that 28% of all the men in a village wear size 9 shoes. What is the probability that a man selected at random in the village wears size 9 shoes?

SchoolNGR Classroom

A \(\frac{7}{25}\)
B \(\frac{41}{50}\)
C \(\frac{1}{2}\)
D 1

View Answer & Explanation

Question 645:

Solve the inequality 2x + 3 < 5x

SchoolNGR Classroom

A \(x>1\)
B \(x
C \(x>\frac{3}{7}\)
D \(x>-1\)

View Answer & Explanation

Stay Updated

Follow us on:

Subjects