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x men working x hours per day can do x units of a work in x days. How much work can becompleted by y men working y hours per day in y days?
  • a)
    x2/y2 units
  • b)
    y3/x2 units
  • c)
    x3/y2 units
  • d)
    y2/x2 units
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
x men working x hours per day can do x units of a work in x days. How ...
Option B
Explanation :Let amount of work completed by y men working y hours per in y days = w unitsMore men, more work(direct proportion)More hours, more work(direct proportion)More days, more work(direct proportion)Hence we can write asMen x:yHours x:y ::x:wDays x:y⇒x3w=y3x ⇒w=y3x/x3=y3/x2
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x men working x hours per day can do x units of a work in x days. How much work can becompleted by y men working y hours per day in y days?a)x2/y2 unitsb)y3/x2 unitsc)x3/y2 unitsd)y2/x2 unitsCorrect answer is option 'B'. Can you explain this answer?
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