A can complete a work in 12 days, and B can complete the same work in 18 days. How many days will they take to complete the work together?

B. 8 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

What is the L.C.M. of the polynomials x^2 - 1 and x^2 - 4?

A. (X - 1)(X + 1)(X - 2)(X + 2)

If the quadratic equation x² + 6x + 9 = 0 is solved, what is the product of its roots?

A. 9
Posted in:  Quadratic Equations -  Algebra -  Mathematics

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

A and B can do a piece of work 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