In a race, five runners A, B, C, D, and E finished in the following order: A is not first or last. B finished before C but after D. E finished last. Who finished first?

C. D

If the roots of the quadratic equation x^2 + px + q = 0 are 3 and -2, what is the value of p?

A. -1
Posted in:  Quadratic Equations -  Algebra -  Mathematics

Select the odd number from the following list.

C. 8

For the quadratic equation 2x^2 - 4x + k = 0 to have real roots, what must be the condition on k?

C. K ? 8
Posted in:  Quadratic Equations -  Algebra -  Mathematics

Which number is different from the others?

D. 22