Railways Exam  >  Railways Questions  >   A certain distance is covered in a certain t... Start Learning for Free
A certain distance is covered in a certain time. If 40% more distance is covered in 37% less time, then find the ratio of the speed in the two cases.
  • a)
    3 : 7
  • b)
    4 : 9
  • c)
    9 : 10
  • d)
    9 : 20
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A certain distance is covered in a certain time. If 40% more distance...
View all questions of this test
Most Upvoted Answer
A certain distance is covered in a certain time. If 40% more distance...
Understanding the Scenario
To solve the problem, we need to analyze the relationship between distance, time, and speed.
Initial Conditions
- Let the original distance be D.
- Let the original time be T.
- Thus, the initial speed (S1) can be expressed as:
- S1 = D / T
New Conditions
- The new distance is 40% more than the original distance:
- New Distance = D + 0.4D = 1.4D
- The time is reduced by 37%:
- New Time = T - 0.37T = 0.63T
- The new speed (S2) can be expressed as:
- S2 = New Distance / New Time = (1.4D) / (0.63T)
Calculating the New Speed Ratio
Now, we can find the ratio of the two speeds:
- S2 = (1.4D) / (0.63T)
To find the ratio S1:S2:
- S1:S2 = (D / T) : (1.4D / 0.63T)
Simplifying the ratio:
- S1:S2 = 1 : (1.4 / 0.63)
Calculating 1.4 / 0.63 gives approximately 2.222.
Thus, we convert this ratio into simpler terms:
- S1:S2 = 1 : 2.222, which is approximately equal to 9 : 20 when converted to whole numbers.
Conclusion
The ratio of the speed in the two cases is 9:20, hence the correct answer is option 'D'.
Explore Courses for Railways exam
A certain distance is covered in a certain time. If 40% more distance is covered in 37% less time, then find the ratio of the speed in the two cases.a)3 : 7b)4 : 9c)9 : 10d)9 : 20Correct answer is option 'D'. Can you explain this answer?
Question Description
A certain distance is covered in a certain time. If 40% more distance is covered in 37% less time, then find the ratio of the speed in the two cases.a)3 : 7b)4 : 9c)9 : 10d)9 : 20Correct answer is option 'D'. 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 certain distance is covered in a certain time. If 40% more distance is covered in 37% less time, then find the ratio of the speed in the two cases.a)3 : 7b)4 : 9c)9 : 10d)9 : 20Correct answer is option 'D'. 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 certain distance is covered in a certain time. If 40% more distance is covered in 37% less time, then find the ratio of the speed in the two cases.a)3 : 7b)4 : 9c)9 : 10d)9 : 20Correct answer is option 'D'. Can you explain this answer?.
Solutions for A certain distance is covered in a certain time. If 40% more distance is covered in 37% less time, then find the ratio of the speed in the two cases.a)3 : 7b)4 : 9c)9 : 10d)9 : 20Correct answer is option 'D'. 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 certain distance is covered in a certain time. If 40% more distance is covered in 37% less time, then find the ratio of the speed in the two cases.a)3 : 7b)4 : 9c)9 : 10d)9 : 20Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A certain distance is covered in a certain time. If 40% more distance is covered in 37% less time, then find the ratio of the speed in the two cases.a)3 : 7b)4 : 9c)9 : 10d)9 : 20Correct answer is option 'D'. Can you explain this answer?, a detailed solution for A certain distance is covered in a certain time. If 40% more distance is covered in 37% less time, then find the ratio of the speed in the two cases.a)3 : 7b)4 : 9c)9 : 10d)9 : 20Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of A certain distance is covered in a certain time. If 40% more distance is covered in 37% less time, then find the ratio of the speed in the two cases.a)3 : 7b)4 : 9c)9 : 10d)9 : 20Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A certain distance is covered in a certain time. If 40% more distance is covered in 37% less time, then find the ratio of the speed in the two cases.a)3 : 7b)4 : 9c)9 : 10d)9 : 20Correct answer is option 'D'. 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