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The average speed of a train in the onward journey is 25% more than that in the return journey. The train halts for one hour on reaching the destination. The total time taken for the complete to and from journey is 17 hours, covering a distance of 800 km. The speed of the train in the onward journey is: 

C. 56.25 KM/HR
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics

If (x - 1/x) = 1/2 , then (4x2 + 4/x2) is equal to :

C. 9
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

21 labourers can build a wall in 25 days. If 14 additional labourers are employed, then in how many days the work can be completed ?

D. 15 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?

A. A
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics

Arvind starts walking  at 2 p.m. with the speed of 5 km/hr from P to Q.
Gopal goes on cycle at 3 p.m. with 10 km/hr from P to Q.
At what time Gopal will cross Arvind ? 

D. 4.00 P.M.
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics