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 the roots of the quadratic equation ax^2 + bx + c = 0 are 3 and -2, what is the value of b?

B. 5

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

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

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

A car travels 150 km in 3 hours. What is its average speed?

B. 60 KM/H