Railways Exam  >  Railways Questions  >  A boat running downstream covers a distance o... Start Learning for Free
A boat running downstream covers a distance of 16 km in 2 hr while for covering the same distance upstream it takes 4 hr. What is the speed of the boat in still water?
  • a)
    4 km/hr
  • b)
    6 km/hr
  • c)
    8 km/hr
  • d)
    Dat inadequate
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A boat running downstream covers a distance of 16 km in 2 hr while for...
To solve this problem, we can use the concept of relative speed. The speed of the boat in still water can be determined by finding the difference between the speed of the boat downstream and the speed of the stream, and then dividing it by 2.

Let's assume the speed of the boat in still water is 'x' km/hr and the speed of the stream is 'y' km/hr.

Downstream:
Speed of the boat + Speed of the stream = 16 km/hr
(x + y) = 16

Upstream:
Speed of the boat - Speed of the stream = 16 km/hr
(x - y) = 16

Now, we have two equations:
x + y = 16 ----(1)
x - y = 8 ----(2)

Adding equation (1) and equation (2), we get:
2x = 24
x = 12

Therefore, the speed of the boat in still water is 12 km/hr.
Free Test
Community Answer
A boat running downstream covers a distance of 16 km in 2 hr while for...
8km
Explore Courses for Railways exam
A boat running downstream covers a distance of 16 km in 2 hr while for covering the same distance upstream it takes 4 hr. What is the speed of the boat in still water?a)4 km/hrb)6 km/hrc)8 km/hrd)Dat inadequateCorrect answer is option 'B'. Can you explain this answer?
Question Description
A boat running downstream covers a distance of 16 km in 2 hr while for covering the same distance upstream it takes 4 hr. What is the speed of the boat in still water?a)4 km/hrb)6 km/hrc)8 km/hrd)Dat inadequateCorrect answer is option 'B'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about A boat running downstream covers a distance of 16 km in 2 hr while for covering the same distance upstream it takes 4 hr. What is the speed of the boat in still water?a)4 km/hrb)6 km/hrc)8 km/hrd)Dat inadequateCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A boat running downstream covers a distance of 16 km in 2 hr while for covering the same distance upstream it takes 4 hr. What is the speed of the boat in still water?a)4 km/hrb)6 km/hrc)8 km/hrd)Dat inadequateCorrect answer is option 'B'. Can you explain this answer?.
Solutions for A boat running downstream covers a distance of 16 km in 2 hr while for covering the same distance upstream it takes 4 hr. What is the speed of the boat in still water?a)4 km/hrb)6 km/hrc)8 km/hrd)Dat inadequateCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Railways. Download more important topics, notes, lectures and mock test series for Railways Exam by signing up for free.
Here you can find the meaning of A boat running downstream covers a distance of 16 km in 2 hr while for covering the same distance upstream it takes 4 hr. What is the speed of the boat in still water?a)4 km/hrb)6 km/hrc)8 km/hrd)Dat inadequateCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A boat running downstream covers a distance of 16 km in 2 hr while for covering the same distance upstream it takes 4 hr. What is the speed of the boat in still water?a)4 km/hrb)6 km/hrc)8 km/hrd)Dat inadequateCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for A boat running downstream covers a distance of 16 km in 2 hr while for covering the same distance upstream it takes 4 hr. What is the speed of the boat in still water?a)4 km/hrb)6 km/hrc)8 km/hrd)Dat inadequateCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of A boat running downstream covers a distance of 16 km in 2 hr while for covering the same distance upstream it takes 4 hr. What is the speed of the boat in still water?a)4 km/hrb)6 km/hrc)8 km/hrd)Dat inadequateCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A boat running downstream covers a distance of 16 km in 2 hr while for covering the same distance upstream it takes 4 hr. What is the speed of the boat in still water?a)4 km/hrb)6 km/hrc)8 km/hrd)Dat inadequateCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Railways tests.
Explore Courses for Railways exam

Top Courses for Railways

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev