If the speed of the stream is v and the speed of the boat with respect to the stream is u, then which of the following gives the correct relationship between u and v

  1. u=v
  2. u=3v
  3. v=2u
  4. v=3u

Answers (1)

Velocity of boat w.r.t stream is u 
Time taken by boat to go downstream, t = d/ (u+v)  ......(1)
Time taken by boat to go upstream, 2t = d/ (u-v)  .........(2)
From equation (1) and (2)
2*d/ (u+v) = d/ (u-v)
-> 2*(u-v) = (u+v)
-> u =3v 
Option (2) is correct

Most Viewed Questions

Preparation Products

Engineering Prep Combo

An exhaustive e-learning program to boost your preparation for the leading engineering entrance exams like:-, BITSAT, VITEEE, MET, SRMJEEE, AEEE, MHT CET, AP EAMCET, TS EAMCET, Unlimited Mock Test for each exam..

₹ 9999/- ₹ 2999/-
Buy Now
Knockout BITSAT 2022

An exhaustive program for the complete preparation of Physics Chemistry Mathematics English & Logical Reasoning of BITSAT exam, Adaptive Time Table, Chapterwise Questions, Concepts Flashcards for Quick and Effective Revision, Unlimited Chapter wise Subject wise and Full mock test for enhancing Speed & Accuracy,.

₹ 2999/- ₹ 1999/-
Buy Now
Knockout BITSAT-JEE Main 2022

An exhaustive E-learning program for the complete preparation of JEE Main and BITSAT.

₹ 35999/- ₹ 16999/-
Buy Now
Boost your Preparation for JEE Main 2021 with Personlized Coaching