Find the missing letter in the series: b, d, f, h, ?

A. J
Posted in:  Letter Series -  Series Completion -  Verbal Reasoning

X : Y :: Z : ?

A. A
Posted in:  Alphabet Analogy -  Analogy -  Verbal Reasoning

If the roots of the quadratic equation ax^2 + bx + c = 0 are real and distinct, which of the following must be true?

A. B^2 - 4AC > 0
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

Complete the series: 1, 1, 2, 3, 5, ?

B. 7
Posted in:  Rule-Detection -  Alphabet Test -  Verbal Reasoning

What is the solution to the system of equations: 2x + 3y = 6 and x - y = 1?

A. (3,0)
Posted in:  Linear Equations -  Algebra -  Mathematics