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 A can complete a journey in 19 hours. He travels first half of the journey at the rate of 21 km/hr and second half at the rate of 24 km/hr. Find the total journey in km.

D. 224 KM
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics

A thief is noticed by a policeman from a distance of 200 m. The thief starts running and the policeman chases him. The thief and the policeman run at the rate of 10 km and 11 km per hour respectively. What is the distance between them after 6 minutes?

D. 100 M
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics

The quadratic equation whose roots are twice the roots of $2x^2 - 5x + 2 = 0$ is :

B. $X^2 - 5X + 4 = 0$
Posted in:  Quadratic Equations -  Algebra -  Mathematics

The Polynomial (x4 - 5x3 + 5x2 - 10x + 24) has a factor as :

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

Let f(x) = x3 - 6x2 + 11x - 6.
Then, which one of the folllowing is not a factor of f(x) ? 

C. X + 3
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics