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The ratio between the speeds of two trains is 7:8. If the second train runs 400 kms in 4 hours, then the speed of the first train is?
  • a)
    100km/hr
  • b)
    75.8km/hr
  • c)
    87.5 km/hr
  • d)
    75km/hr
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The ratio between the speeds of two trains is7:8. If the second train ...
speed of second train = 400km in 4 hr 
 = 100km/hr
ratio of speeds is 7:8
7:8 = v:100
v = 87.5km/hr
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Most Upvoted Answer
The ratio between the speeds of two trains is7:8. If the second train ...
Given:Ratio of speeds of two trains is 7:8Second train runs 400 kms in 4 hoursTo find:Speed of the first trainSolution:Let the speeds of the two trains be 7x and 8xDistance covered by the second train = 400 kmsTime taken by the second train = 4 hoursFormula:Speed = Distance/TimeSpeed of the second train = Distance/Time = 400/4 = 100 km/hr (Given)Speed of the first train = (7/8) * Speed of the second train=> Speed of the first train = (7/8) * 100 = 87.5 km/hrTherefore, the speed of the first train is 87.5 km/hr.Option (c) is the correct answer.
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Community Answer
The ratio between the speeds of two trains is7:8. If the second train ...
C) 87.5 km/hr
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The ratio between the speeds of two trains is7:8. If the second train runs 400 kms in 4 hours, then the speed of the first train is?a)100km/hrb)75.8km/hrc)87.5 km/hrd)75km/hrCorrect answer is option 'C'. Can you explain this answer? for Quant 2025 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about The ratio between the speeds of two trains is7:8. If the second train runs 400 kms in 4 hours, then the speed of the first train is?a)100km/hrb)75.8km/hrc)87.5 km/hrd)75km/hrCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Quant 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The ratio between the speeds of two trains is7:8. If the second train runs 400 kms in 4 hours, then the speed of the first train is?a)100km/hrb)75.8km/hrc)87.5 km/hrd)75km/hrCorrect answer is option 'C'. Can you explain this answer?.
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