A. 31:28

B. 29 : 32

C. 55 : 2

D. 62 : 55

E. None of these

If a man rows at the rate of 5 km ph in still water and his against the current is 3.5km ph, then The man’s rate along the current is:

In a 100 m race, A can give B 10 m and C 28 m. in the same race B can give

A train overtaken two persons walking along a railway track. The first one walks at 4.5 km/hr. the other one walks at 5.4 km/hr. the train needs 8.4 and 8.5 sec respectively to overtake them. What is the speed of the train if both the persons are walking in the same direction as the train

Two busess travel to a place 20 kmph and 40 kmhr. If the second bus takes 6 hrs. less than the fixed for the journey the length of the journey is:

A boat takes 19 hours for travelling downstream from point A to point B and coming back to a point c midway between A and B. If the velocity of the stream is 4 kmph and the speed of the boat in still water is 14 kmph, what is the distance between A and B?