Sarkari RiseLogin
CDS 2026 · PYQ · Boats and Streams · easy

A person goes in a boat downstream at x km/hr and upstream at y km/hr. What is the ratio of speed of the boat in still water to the speed of water?

  1. A.x/y
  2. B.y/x
  3. C.(x+y)/(x–y)✓ Correct
  4. D.(x–y)/(x+y)

Explanation

Speed of boat in still water = (x + y)/2. Speed of stream (water) = (x – y)/2. Therefore ratio = (x+y)/2 : (x–y)/2 = (x+y)/(x–y).
💡 Practice unlimited CDS PYQs + AI-tracked progress on each topic. Sign up free →

More Boats and Streams questions

Want more CDS practice?

Free daily 10-Q quiz · adaptive mocks · 4,000+ verified PYQs · AI doubt solver in Hindi + English

Sign up freeMore Boats and Streams practice