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If C can finish a work in 12 days and D can finish the same work in 18 days, how long will it take for both to finish the work together?

A. 7.2 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

If the roots of the quadratic equation x² + px + q = 0 are 3 and -2, what is the value of p?

A. -1
Posted in:  Quadratic Equations -  Algebra -  Mathematics

A can complete a task in 15 hours, B can complete it in 10 hours, and C can complete it in 6 hours. If they all work together, how long will it take to complete the task?

B. 3 HOURS
Posted in:  Time & Work -  Aptitude -  Mathematics

If A can do a work in 24 days and B can do it in 36 days, how many days will it take for A and B to complete the work if A works alone for 10 days and then B joins him?

C. 18 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

For the quadratic equation 2x² + 3x - 5 = 0, what is the product of the roots?

A. -5/2
Posted in:  Quadratic Equations -  Algebra -  Mathematics