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A, B and C can do a piece of work in 15, 20 and 30 days. They undertake to complete the work for Rs. 810. How much share of A exceeds that of B ?

A. RS. 90
Posted in:  Time & Work -  Aptitude -  Mathematics

If (x - 2) is a factor of (x2 + 3qx - 2q), then the value of q is :

D. -1
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

A man, a woman or a boy can do a piece of work in 3, 4 and 12 days respectively. How many boys must assist one man and one woman to do the work in one days ?

A. 5
Posted in:  Time & Work -  Aptitude -  Mathematics

If the ratio of the roots of the equation $x^2 + 6x + k - 5 = 0$ is 3:5, then find the value of k.

C. $55/16$
Posted in:  Quadratic Equations -  Algebra -  Mathematics

A motor car starts with the speed of 70 km/hr with its speed increasing every two hours by 10 kmph. In how many hours will it cover 345 kms?

A. 4 (1/2) HOURS
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics