GENPACT Company Logical Reasoning Seating Arrangement

A boat covers a certain distance downstream in I hour, while it comes back in 1½ hours. If the speed of the stream be 3 kmph. what is the speed of the boat in still Water?
A. 12kmph
B. 13kmph
C. 15kmph
D. 16kmph

Read Solution (Total 1)

15 kmph

suppose it travels 1 km downstream in 1 hr and upstream in 1.5 hrs.
speed of boat in still water is x, then
1= 1/(x+3)
1.5= 1/(x-3)
solving we get
x= 15 kmph
11 years agoHelpfull: Yes(1) No(0)

GENPACT Other Question

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 ?
A. 160 km
B. 180 km
C. 200 km
D. 220 km A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr The man's speed against the current is
A. 8.5 km/hr
B. 9 km/hr
C. 10 km/hr
D. 12.5 km/hr