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P can lay railway track between two stations in 16 days. Q can do the same job in 12 days. With the help of R, they completes the job in 4 days. How much days does it take for R alone to complete the work?
  • a)
  • b)
  • c)
  • d)
    10 days
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
P can lay railway track between two stations in 16 days. Q can do the ...
Amount of work P can do in 1 day = 1/16

Amount of work Q can do in 1 day = 1/12 

Amount of work P, Q and R can together do in 1 day = 1/4

Amount of work R can do in 1 day = 1/4 - (1/16 + 1/12) = 3/16 – 1/12 = 5/48

Hence R can do the job on 48/5 days = 9 (3/5) days
Community Answer
P can lay railway track between two stations in 16 days. Q can do the ...
FIRST WE NEED TO FIND THE LCM OF 16,12,4 IS 48 THAT IS THERE ARE 48 UNITS OF WORK.
FOR 1DAY. LCM

P 16DAYS 3UNITS
Q. 12DAYS. 4UNTS. 48UNITS
R. ?

P,Q,R. 4DAYS. 12UNITS


TO GET TOGETHER SUM THE R VALUE MUST (3+4+5).
THAT IS R CAN COMPLETE THE 5UNITS OF WORK IN ONE DAY.
1D. 5UNITS
? 48UNITS

LET IT BE 'X'

5X=48
X=48/5
X=9(3/5) IT IS A MIXED FRACTION.
THE ANSWER IS 9(3/5)
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P can lay railway track between two stations in 16 days. Q can do the same job in 12 days. With the help of R, they completes the job in 4 days. How much days does it take for R alone to complete the work?a)b)c)d)10 daysCorrect answer is option 'A'. Can you explain this answer?
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P can lay railway track between two stations in 16 days. Q can do the same job in 12 days. With the help of R, they completes the job in 4 days. How much days does it take for R alone to complete the work?a)b)c)d)10 daysCorrect answer is option 'A'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about P can lay railway track between two stations in 16 days. Q can do the same job in 12 days. With the help of R, they completes the job in 4 days. How much days does it take for R alone to complete the work?a)b)c)d)10 daysCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for P can lay railway track between two stations in 16 days. Q can do the same job in 12 days. With the help of R, they completes the job in 4 days. How much days does it take for R alone to complete the work?a)b)c)d)10 daysCorrect answer is option 'A'. Can you explain this answer?.
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