A can do a work in 18 days and B can do it in 24 days. If they work together for 6 days, how much work is left?

A. 1/3
Posted in:  Time & Work -  Aptitude -  Mathematics

If '?' stands for multiplication, '?' stands for addition, '?' stands for subtraction, and '?' stands for division, what is the value of 6 ? 2 ? 3 ? 4 ? 2?

C. 12
Posted in:  Problem-Solving By Substitution -  Mathematical Operations -  Verbal Reasoning

If x is a positive integer such that 3x + 7 = 28, what is the value of x?

A. 5
Posted in:  Numbers -  Arithmetic -  Mathematics

Pencil is to Write as Brush is to:

A. PAINT
Posted in:  Detect Analogies -  Analogy -  Verbal Reasoning

If the pattern is 5, 10, 20, 40, what is the next number?

C. 80
Posted in:  Rule-Detection -  Alphabet Test -  Verbal Reasoning