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A group of men could do a piece of work in 18 days. However, 6 men left the group before the work began and the remaining men in the group completed the work in 20days. What was the original size of the group?
  • a)
    60
  • b)
    120
  • c)
    48
  • d)
    72
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A group of men could do a piece of work in 18 days. However, 6 men lef...
  • If M1 persons can do a piece of work in D1 days and M2 persons can do same piece of work in D2 days, then M1*D1= M2 * D2.
  • Let the original number of men in the group be 'x'. (M1)
  • After 6 men left, the size of group be (x-6) men. (M2)
Now using the above formula, we get
⇒ x * 18 = (x-6) * 20
⇒ 18x = 20x -120
⇒ 120= 20x-18x
⇒ 120 = 2x
⇒ x=60
Therefore, the original number of men in the group is 60 men.
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A group of men could do a piece of work in 18 days. However, 6 men left the group before the work began and the remaining men in the group completed the work in 20days. What was the original size of the group?a)60b)120c)48d)72Correct answer is option 'A'. Can you explain this answer?
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A group of men could do a piece of work in 18 days. However, 6 men left the group before the work began and the remaining men in the group completed the work in 20days. What was the original size of the group?a)60b)120c)48d)72Correct answer is option 'A'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A group of men could do a piece of work in 18 days. However, 6 men left the group before the work began and the remaining men in the group completed the work in 20days. What was the original size of the group?a)60b)120c)48d)72Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A group of men could do a piece of work in 18 days. However, 6 men left the group before the work began and the remaining men in the group completed the work in 20days. What was the original size of the group?a)60b)120c)48d)72Correct answer is option 'A'. Can you explain this answer?.
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