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If A can finish a piece of work in 20 days and B can finish it in 30 days, how long will it take for both A and B to finish the work together?

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

A quadratic equation has roots 3 and -2. What is the quadratic equation in standard form?

A. X² - X - 6 = 0
Posted in:  Quadratic Equations -  Algebra -  Mathematics

If 5 men can complete a work 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

A and B can do a piece of work in 12 days and 18 days respectively. If they work together for 6 days, how much work is left?

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

If the roots of the quadratic equation x² - 7x + 10 = 0 are a and b, what is the value of a² + b²?

B. 39
Posted in:  Quadratic Equations -  Algebra -  Mathematics