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Prem and Sham can do a job together in 7 days. Sham is 1¾  times more efficient than Prem. Same job can be done by sham alone in
  • a)
    11 days                    
  • b)
    49/4 days
  • c)
    49/3 days                 
  • d)
    21/3 days
  • e)
    None of these
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Prem and Sham can do a job together in 7 days. Sham is 1¾ times m...
So here is the soln-
let, prem's one day work=1/A
sham's one day work=1/B
(prem+sham)'s one day work=1/7
prem's one day work=(7/4)×work done by sham
=> 1/A=7/4×1/B
=>1/A=7/4B
(prem+sham)'s one day work=1/A+1/B
=> 1/7=7/4B+1/B [ wkt 1/A=7/4B]
on solving-
B=77/4
A=4B/7=4×77/4×7=11days.
therefore, A can complete the work in 11 days.
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Community Answer
Prem and Sham can do a job together in 7 days. Sham is 1¾ times m...
Ans shd be 44/7 as we r to find sham alone work not prem's work.

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Prem and Sham can do a job together in 7 days. Sham is 1¾ times more efficient than Prem. Same job can be done by sham alone ina)11 days b)49/4 daysc)49/3 daysd)21/3 dayse)None of theseCorrect answer is option 'A'. Can you explain this answer?
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Prem and Sham can do a job together in 7 days. Sham is 1¾ times more efficient than Prem. Same job can be done by sham alone ina)11 days b)49/4 daysc)49/3 daysd)21/3 dayse)None of theseCorrect answer is option 'A'. 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 Prem and Sham can do a job together in 7 days. Sham is 1¾ times more efficient than Prem. Same job can be done by sham alone ina)11 days b)49/4 daysc)49/3 daysd)21/3 dayse)None of theseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Quant 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Prem and Sham can do a job together in 7 days. Sham is 1¾ times more efficient than Prem. Same job can be done by sham alone ina)11 days b)49/4 daysc)49/3 daysd)21/3 dayse)None of theseCorrect answer is option 'A'. Can you explain this answer?.
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