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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

Fourteen machines can produce 500 units in 12 hours. After four hours poduction, two more machines were started. How many hours will it take to complete the production of 500 units ?

D. 7
Posted in:  Time & Work -  Aptitude -  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