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If C can do a piece of work in 20 days and D can do it in 30 days, how long will it take for both C and D to complete the work together?

B. 15 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

If a work can be completed by 5 men in 20 days, how many days will it take for 10 men to complete the same work?

A. 10 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

What is the sum of the roots of the quadratic equation x^2 - 5x + 6 = 0?

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

What is the solution to the system of equations: 2x + 3y = 6 and x - y = 1?

C. (1,2)
Posted in:  Linear Equations -  Algebra -  Mathematics

Which of the following pairs of equations represents parallel lines?

A. 2X + Y = 5 AND 4X + 2Y = 10
Posted in:  Linear Equations -  Algebra -  Mathematics