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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
Rahul can row downstream at 11 km/h
and upstream at 7 km/h. Find the speed
of Rahul in still water and speed of
current.
Solution
Let speed of Rahul in still water = b km/hand
speed of current = c km/h.
Then,
Downstream speed = b + c = 11
Upstream speed = b - c = 7
Adding both: 2b = 18
b = 9
Subtracting: 2c = 4
c = 2
✅ Rahul’s speed in still water = 9 km/h
✅ Speed of current = 2 km/h
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