A and B can complete a task in 20 days and 30 days respectively. If they work together for 10 days, how much of the work is left?

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

What is the result of dividing the polynomial 3x^3 + 6x^2 - 9x by 3x?

A. X^2 + 2X - 3

If C can do a piece of work in 24 days and D can do it in 16 days, how long will it take for them to complete the work together?

A. 9.6 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

If the roots of the quadratic equation ax^2 + bx + c = 0 are 3 and -2, what is the value of b in terms of a?

B. 5A

If the roots of the quadratic equation x² + px + q = 0 are 3 and -2, what is the value of p?

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