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Which of the following is a rational expression?

C. 1/(X - 3)
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

If x is a positive integer such that 3x + 5 = 26, what is the value of x?

A. 7
Posted in:  Numbers -  Arithmetic -  Mathematics

Which of the following numbers is a prime number?

B. 29
Posted in:  Numbers -  Arithmetic -  Mathematics

A can complete a work in 10 days, while B can complete the same work in 15 days. How long will it take for both A and B to complete the work together?

A. 6 DAYS
Posted in:  Time & Work -  Aptitude -  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