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 A person travels from P to Q at a speed of 40 kmph and returns by increasing his speed by 50%. What is his average speed for the both the trips? 

B. 48 KMPH
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics

If the quadratic equation ax^2 + bx + c = 0 has roots r1 and r2, which of the following is true?

A. R1 + R2 = -B/A
Posted in:  Quadratic Equations -  Algebra -  Mathematics

A quadratic equation has roots 3 and 4. What is the quadratic equation in standard form?

A. X² - 7X + 12 = 0
Posted in:  Quadratic Equations -  Algebra -  Mathematics

If A can do a piece of work in 15 days and B can do it in 10 days, how long will it take for both A and B to complete the work together?

B. 7.5 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

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

A. 2 AND 3
Posted in:  Quadratic Equations -  Algebra -  Mathematics