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A contractor undertook to do a work in 60 days and employed 30 men to do it. After 45 days he found that only 3/5th of the work was done. How many more men must be employed so that the work may be finished in time?
  • a)
    35
  • b)
    60
  • c)
    48
  • d)
    30
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
A contractor undertook to do a work in 60 days and employed 30 men to ...
GIVEN:
A contractor undertook to do a work in 60 days and employed 30 men to do it.
After 45 days he found that only 3/5th of the work was done
FORMULA USED:
(M1D1)/(W1) = (M2D2)/(W2) 
CALCULATION:
(45 × 30)/(3/5) = (M2 ×15)/(2/5) 
M2 = (5 × 45 × 30 × 2)/(15 × 5 × 3)  = 60 men 
Required men = 60 – 30 = 30 men
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Most Upvoted Answer
A contractor undertook to do a work in 60 days and employed 30 men to ...
GIVEN:
A contractor undertook to do a work in 60 days and employed 30 men to do it.
After 45 days he found that only 3/5th of the work was done
FORMULA USED:
(M1D1)/(W1) = (M2D2)/(W2) 
CALCULATION:
(45 × 30)/(3/5) = (M2 ×15)/(2/5) 
M2 = (5 × 45 × 30 × 2)/(15 × 5 × 3)  = 60 men 
Required men = 60 – 30 = 30 men
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A contractor undertook to do a work in 60 days and employed 30 men to do it. After 45 days he found that only 3/5thof the work was done. How many more men must be employed so that the work may be finished in time?a)35b)60c)48d)30Correct answer is option 'D'. Can you explain this answer?
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