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What is the sum of 456 and 789?

A. 1245
Posted in:  Numbers -  Arithmetic -  Mathematics

If a pipe can fill a tank in 6 hours and another pipe can empty it in 8 hours, how long will it take to fill the tank if both pipes are opened together?

D. 16 HOURS
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?

B. K ? 8
Posted in:  Quadratic Equations -  Algebra -  Mathematics

What is the result of dividing the polynomial 3x^3 + 6x^2 - 9x by 3x?

A. X^2 + 2X - 3
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

What is the remainder when the polynomial f(x) = 2x^3 - 3x^2 + 4 is divided by x - 2?

A. 10
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics