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Answer the questions are based on the following:
Two men are walking towards each other alongside a railway track. A freight train overtakes one of them in 20 seconds and exactly 10 minutes later meets the other man coming from the opposite direction. The train passes this man in 18 seconds. Assume the velocities are constant throughout.
Q. The ratio of the velocities of the first man to the second man is
  • a)
    10:9
  • b)
    9:10
  • c)
    11:10
  • d)
    Cannot be determined
  • e)
    None of these
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
Answer the questions are based on the following:Two men are walking t...

Explanation:

Given information:
- The train takes 20 seconds to overtake the first man.
- 10 minutes later, it meets the second man and takes 18 seconds to overtake him.

Calculating the speeds:
- Let the speed of the first man be x m/s and the speed of the second man be y m/s.
- Distance covered by the train in 20 seconds = Speed of the train * 20
- Distance covered by the train in 18 seconds = Speed of the train * 18

Using the above information:
- Speed of the train = Distance covered by the train / Time taken
- Speed of the train = x + y (when they meet after 10 minutes)

Equating the distances:
- (x + y) * 600 = x * 20 (when the train overtakes the first man)
- (x + y) * 600 = y * 18 (when the train overtakes the second man)

Solving the equations:
- 600x + 600y = 20x
- 600x + 600y = 18y

Calculating the ratio of speeds:
- Dividing the two equations, we get: 20x / 18y = x / y
- Thus, the ratio of speeds of the first man to the second man cannot be determined.

Therefore, the correct answer is option 'D'.
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Community Answer
Answer the questions are based on the following:Two men are walking t...
From the given data, we cant find relation between speed of the 2 persons.
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Directions for Questions: The first-year students in a business school are split into six sections. In 2019 the Business Statistics course was taught in these six sections by Annie, Beti, Chetan, Dave, Esha, and Fakir. All six sections had a common midterm (MT) and a common end term (ET) worth 100 marks each. ET contained more questions than MT. Questions for MT and ET were prepared collectively by the six faculty members. Considering MT and ET together, each faculty member prepared the same number of questions.Each of MT and ET had at least four questions that were worth 5 marks, at least three questions that were worth 10 marks, and at least two questions that were worth 15 marks. In both MT and ET, all the 5-mark questions preceded the 10-mark questions, and all the 15- mark questions followed the 10-mark questions.The following additional facts are known.i. Annie prepared the fifth question for both MT and ET. For MT, this question carried 5 marks.ii. Annie prepared one question for MT. Every other faculty member prepared more than one questions for MT.iii. All questions prepared by a faculty member appeared consecutively in MT as well as ET.iv. Chelan prepared the third question in both MT and ET: and Esha prepared the eighth question in both.v. Fakir prepared the first question of MT and the last one in ET. Dave prepared the last question of MT and the first one in ET.(2019)Q. How many 5-mark questions were there in MT and ET combined?

The first year students in a business school are split into six sections. In 2019 the Business Statistics course was taught in these six sections by Annie, Beti, Chetan, Dave, Esha, and Fakir. All six sections had a common midterm (MT) and a common end term (ET) worth 100 marks each. ET contained more questions than MT. Questions for MT and ET were prepared collectively by the six faculty members.Considering MT and ET together, each faculty member prepared the same number of questions.Each of MT and ET had at least four questions that were worth 5 marks, at least three questions that were worth 10 marks, and at least two questions that were worth 15 marks. In both MT and ET, all the 5-mark questions preceded the 10-mark questions, and all the 15-mark questions followed the 10-mark questions.The following additional facts are known. i. Annie prepared the fifth question for both MT and ET. For MT, this question carried 5 marks. ii. Annie prepared one question for MT. Every other faculty member prepared more than one questions for MT.iii. All questions prepared by a faculty member appeared consecutively in MT as well as ET. iv. Chetan prepared the third question in both MT and ET; and Esha prepared the eighth question in both. v. Fakir prepared the first question of MT and the last one in ET. Dave prepared the last question of MT and the first one in ET.Q. How many 5 mark questions were there in MT and ET combined?

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Answer the questions are based on the following:Two men are walking towards each other alongside a railway track. A freight train overtakes one of them in 20 seconds and exactly 10 minutes later meets the other man coming from the opposite direction. The train passes this man in 18 seconds. Assume the velocities are constant throughout.Q. The ratio of the velocities of the first man to the second man isa)10:9b)9:10c)11:10d)Cannot be determinede)None of theseCorrect answer is option 'D'. Can you explain this answer?
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