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50 people can complete a work in 20 days. A contractor has employed 35 people to complete the work. However after 12 days he gets a notice that he has to complete the remaining work within 3 days. Then how many more people does he have to employ to finish the work on time?
  • a)
    194
  • b)
    159
  • c)
    160
  • d)
    195
  • e)
    183
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
50 people can complete a work in 20 days. A contractor has employed 35...
Total work = 50 x 20 = 1000 units of man days
Work done by 12 people in 35 days = 35 x 12 = 420 man days
Remaining work = 1000 - 420 = 580 man days
Let the number of people to be added be N.
Therefore, (N+35) x 3 = 580
N+35 = 580/3
N+35 = 193.33 = 194 people (people have to be an integral number)
Or N = 159 people
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50 people can complete a work in 20 days. A contractor has employed 35 people to complete the work. However after 12 days he gets a notice that he has to complete the remaining work within 3 days. Then how many more people does he have to employ to finish the work on time?a)194b)159c)160d)195e)183Correct answer is option 'B'. Can you explain this answer?
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