A and B can complete a work in 12 days and 16 days respectively. If they work together for 4 days, how much work is left?

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

What is the sum of the roots of the quadratic equation x^2 - 5x + 6 = 0?

A. 5
Posted in:  Quadratic Equations -  Algebra -  Mathematics

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