A boat's speed in still water is 12 km/h and the stream flows at 1 km/h. The boat goes 52 km downstream. How…

Boats and Streams · Quantitative Aptitude · Medium · Practice for SSC CGL Tier 1

A boat's speed in still water is 12 km/h and the stream flows at 1 km/h. The boat goes 52 km downstream. How long will the return trip upstream take?

  1. 6.73 hours
  2. 4 hours
  3. 5.73 hours
  4. 4.73 hours
Answer and solution

Correct answer: D) 4.73 hours

Upstream speed = 12 − 1 = 11 km/h; time = 52/11 = 4.73 hours.

Learn the method: Boats and Streams rules and worked examples · SSC CGL Tier 1 Quantitative Aptitude

Similar questions

Practise more Boats and Streams questions in a timed mock · Report an error