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A can do a piece of work in 12 days, B can do it in 15 days, and C can do it in 20 days. How long will they take to complete the work together?

B. 6 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

If A can finish a work in 18 days and B can finish it in 27 days, how long will it take for A and B to finish the work together?

D. 9 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

A and B can complete a work in 24 days together. If A alone can complete the work in 36 days, how long will B take to complete the work alone?

A. 48 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)
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

What is the sum of the roots of the quadratic equation x² - 5x + 6 = 0?

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