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A can do a work in 15 days, B can do it in 20 days, and C can do it in 30 days. If they all work together, how long will it take to complete the work?

B. 5 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

A car and a bike start from the same point. The car travels at 80 km/h and the bike at 40 km/h. After 2 hours, how much farther has the car traveled than the bike?

B. 60 KM
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics

Which of the following is a factor of the polynomial x^2 - 5x + 6?

A. X - 2
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

If the roots of the quadratic equation ax^2 + bx + c = 0 are 3 and 4, what is the value of b in terms of a?

A. -7A
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

Which of the following is a factor of the polynomial x^2 - 5x + 6?

A. X - 2
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics