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

B. 8 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

A and B can complete a work in 20 days and 30 days respectively. If they work together for 10 days, how much of the work is left?

A. 1/3
Posted in:  Time & Work -  Aptitude -  Mathematics

Which of the following quadratic equations has roots that are equal?

A. X^2 - 4X + 4 = 0
Posted in:  Quadratic Equations -  Algebra -  Mathematics

If a vehicle travels 300 km in 5 hours, what is its speed in meters per second?

B. 12 M/S
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics

If the quadratic equation x^2 + 4x + k = 0 has roots that are real and distinct, what must be the condition for k?

B. K > 4
Posted in:  Quadratic Equations -  Algebra -  Mathematics