Defence Exam > Defence Questions > DIRECTIONS: Choose the most appropriate answe...
Start Learning for Free
DIRECTIONS: Choose the most appropriate answer.
Q. The speed of a boat in still water is 10 Kmph. If it can travel 26 Km downstream and 14 Km upstream in the same time, the speed of the stream is
- a)2 Kmph
- b)2.5 Kmph
- c)3 Kmph
- d)4 Kmph
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
DIRECTIONS: Choose the most appropriate answer.Q. The speed of a boat ...
Let speed of stream be x Kmph.
Then,
Speed of stream is 3 Kmph.
Then,
Speed of stream is 3 Kmph.
Most Upvoted Answer
DIRECTIONS: Choose the most appropriate answer.Q. The speed of a boat ...
Problem Analysis:
Let's assume the speed of the stream is 'x' kmph.
The speed of the boat in downstream (boat moving along the stream) would be the sum of the speed of the boat in still water and the speed of the stream, i.e., 10 + x kmph.
Similarly, the speed of the boat in upstream (boat moving against the stream) would be the difference between the speed of the boat in still water and the speed of the stream, i.e., 10 - x kmph.
Given Information:
Speed of the boat in still water = 10 kmph
Distance downstream = 26 km
Distance upstream = 14 km
Time taken for downstream and upstream travel is the same.
Solution:
Let's calculate the time taken for downstream and upstream travel using the given information and the formula: Time = Distance/Speed.
Downstream:
Distance downstream = 26 km
Speed downstream = 10 + x kmph
Time taken downstream = Distance downstream / Speed downstream = 26 / (10 + x) hours
Upstream:
Distance upstream = 14 km
Speed upstream = 10 - x kmph
Time taken upstream = Distance upstream / Speed upstream = 14 / (10 - x) hours
Since the time taken for downstream and upstream travel is the same, we can equate the two expressions for time:
26 / (10 + x) = 14 / (10 - x)
Solving the equation:
To solve this equation, we can cross-multiply and simplify:
26(10 - x) = 14(10 + x)
260 - 26x = 140 + 14x
40x = 120
x = 3
Therefore, the speed of the stream is 3 kmph. Hence, the correct answer is option C, 3 kmph.
Let's assume the speed of the stream is 'x' kmph.
The speed of the boat in downstream (boat moving along the stream) would be the sum of the speed of the boat in still water and the speed of the stream, i.e., 10 + x kmph.
Similarly, the speed of the boat in upstream (boat moving against the stream) would be the difference between the speed of the boat in still water and the speed of the stream, i.e., 10 - x kmph.
Given Information:
Speed of the boat in still water = 10 kmph
Distance downstream = 26 km
Distance upstream = 14 km
Time taken for downstream and upstream travel is the same.
Solution:
Let's calculate the time taken for downstream and upstream travel using the given information and the formula: Time = Distance/Speed.
Downstream:
Distance downstream = 26 km
Speed downstream = 10 + x kmph
Time taken downstream = Distance downstream / Speed downstream = 26 / (10 + x) hours
Upstream:
Distance upstream = 14 km
Speed upstream = 10 - x kmph
Time taken upstream = Distance upstream / Speed upstream = 14 / (10 - x) hours
Since the time taken for downstream and upstream travel is the same, we can equate the two expressions for time:
26 / (10 + x) = 14 / (10 - x)
Solving the equation:
To solve this equation, we can cross-multiply and simplify:
26(10 - x) = 14(10 + x)
260 - 26x = 140 + 14x
40x = 120
x = 3
Therefore, the speed of the stream is 3 kmph. Hence, the correct answer is option C, 3 kmph.
|
Explore Courses for Defence exam
|
|
Similar Defence Doubts
DIRECTIONS: Choose the most appropriate answer.Q. The speed of a boat in still water is 10 Kmph. If it can travel 26 Km downstream and 14 Km upstream in the same time, the speed of the stream isa)2 Kmphb)2.5 Kmphc)3 Kmphd)4 KmphCorrect answer is option 'C'. Can you explain this answer?
Question Description
DIRECTIONS: Choose the most appropriate answer.Q. The speed of a boat in still water is 10 Kmph. If it can travel 26 Km downstream and 14 Km upstream in the same time, the speed of the stream isa)2 Kmphb)2.5 Kmphc)3 Kmphd)4 KmphCorrect answer is option 'C'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about DIRECTIONS: Choose the most appropriate answer.Q. The speed of a boat in still water is 10 Kmph. If it can travel 26 Km downstream and 14 Km upstream in the same time, the speed of the stream isa)2 Kmphb)2.5 Kmphc)3 Kmphd)4 KmphCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for DIRECTIONS: Choose the most appropriate answer.Q. The speed of a boat in still water is 10 Kmph. If it can travel 26 Km downstream and 14 Km upstream in the same time, the speed of the stream isa)2 Kmphb)2.5 Kmphc)3 Kmphd)4 KmphCorrect answer is option 'C'. Can you explain this answer?.
DIRECTIONS: Choose the most appropriate answer.Q. The speed of a boat in still water is 10 Kmph. If it can travel 26 Km downstream and 14 Km upstream in the same time, the speed of the stream isa)2 Kmphb)2.5 Kmphc)3 Kmphd)4 KmphCorrect answer is option 'C'. Can you explain this answer? for Defence 2024 is part of Defence preparation. The Question and answers have been prepared according to the Defence exam syllabus. Information about DIRECTIONS: Choose the most appropriate answer.Q. The speed of a boat in still water is 10 Kmph. If it can travel 26 Km downstream and 14 Km upstream in the same time, the speed of the stream isa)2 Kmphb)2.5 Kmphc)3 Kmphd)4 KmphCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Defence 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for DIRECTIONS: Choose the most appropriate answer.Q. The speed of a boat in still water is 10 Kmph. If it can travel 26 Km downstream and 14 Km upstream in the same time, the speed of the stream isa)2 Kmphb)2.5 Kmphc)3 Kmphd)4 KmphCorrect answer is option 'C'. Can you explain this answer?.
Solutions for DIRECTIONS: Choose the most appropriate answer.Q. The speed of a boat in still water is 10 Kmph. If it can travel 26 Km downstream and 14 Km upstream in the same time, the speed of the stream isa)2 Kmphb)2.5 Kmphc)3 Kmphd)4 KmphCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Defence.
Download more important topics, notes, lectures and mock test series for Defence Exam by signing up for free.
Here you can find the meaning of DIRECTIONS: Choose the most appropriate answer.Q. The speed of a boat in still water is 10 Kmph. If it can travel 26 Km downstream and 14 Km upstream in the same time, the speed of the stream isa)2 Kmphb)2.5 Kmphc)3 Kmphd)4 KmphCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
DIRECTIONS: Choose the most appropriate answer.Q. The speed of a boat in still water is 10 Kmph. If it can travel 26 Km downstream and 14 Km upstream in the same time, the speed of the stream isa)2 Kmphb)2.5 Kmphc)3 Kmphd)4 KmphCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for DIRECTIONS: Choose the most appropriate answer.Q. The speed of a boat in still water is 10 Kmph. If it can travel 26 Km downstream and 14 Km upstream in the same time, the speed of the stream isa)2 Kmphb)2.5 Kmphc)3 Kmphd)4 KmphCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of DIRECTIONS: Choose the most appropriate answer.Q. The speed of a boat in still water is 10 Kmph. If it can travel 26 Km downstream and 14 Km upstream in the same time, the speed of the stream isa)2 Kmphb)2.5 Kmphc)3 Kmphd)4 KmphCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice DIRECTIONS: Choose the most appropriate answer.Q. The speed of a boat in still water is 10 Kmph. If it can travel 26 Km downstream and 14 Km upstream in the same time, the speed of the stream isa)2 Kmphb)2.5 Kmphc)3 Kmphd)4 KmphCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Defence tests.
|
|
Explore Courses for Defence exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup