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Walking (6/7) th of his usual speed, a man is 12 minutes too late. The usual time taken by him to cover that distance is:

D. 1 HOUR 12 MINUTES
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics

The equations 3x - 4y = 5 and 12x - 16y = 20 have :

D. MORE THAN TWO COMMON SOLUTIONS.
Posted in:  Linear Equations -  Algebra -  Mathematics

Find the unit's digit in (264)102 + (264)103.

D. 0
Posted in:  Numbers -  Arithmetic -  Mathematics

A car taken 5 hours to cover a distance of 300 kms.
How much should the speed in km/hour be maintained to cover the same distance in 4/5th of the previous time ?

D. 75 KM/HOUR
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics

If $x^2 - 6x + α = 0 has two roots α, β and 3α + 2β = 20, then find a.

A. - 16
Posted in:  Quadratic Equations -  Algebra -  Mathematics