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What is the product of 12 and 15?

A. 180
Posted in:  Numbers -  Arithmetic -  Mathematics

A and B can complete a work in 15 days together. If A alone can do it in 25 days, how long will B take to complete the work alone?

A. 30 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 H.C.F. of the polynomials 2x^2 + 4x and 4x^2 + 8x?

A. 2X
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

What are the roots of the quadratic equation x² - 4x + 4 = 0?

A. 2, 2
Posted in:  Quadratic Equations -  Algebra -  Mathematics