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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

If A can do a piece of work in 15 days and B can do it in 10 days, how long will it take for both A and B to complete the work together?

B. 7.5 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

For the quadratic equation 2x² - 4x + k = 0 to have real roots, what must be the condition on k?

C. K ? 8
Posted in:  Quadratic Equations -  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

What is the result of 7 squared minus 3 cubed?

A. 34
Posted in:  Numbers -  Arithmetic -  Mathematics