If '?' represents multiplication, '?' represents division, '?' represents addition, and '?' represents subtraction, what is the value of 10 ? 2 ? 5 ? 5?

A. 20
Posted in:  Problem-Solving By Substitution -  Mathematical Operations -  Verbal Reasoning

What is the next number in the series: 12, 24, 48, 96, ?

A. 192
Posted in:  Number Series -  Series Completion -  Verbal Reasoning

If the quadratic equation 3x² - 12x + k = 0 has roots that differ by 2, what is the value of k?

A. 18
Posted in:  Quadratic Equations -  Algebra -  Mathematics

Which of the following pairs of equations represents parallel lines?

A. 2X + Y = 4 AND 4X + 2Y = 8
Posted in:  Linear Equations -  Algebra -  Mathematics

If the code for 'CAT' is 12, 15, 18 and the code for 'DOG' is 14, 17, 20, what is the code for 'BAD'?

A. 10, 12, 14
Posted in:  Mixed Number Coding -  Coding - Decoding -  Verbal Reasoning