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Q15 persons working 8 hours a damn can complete your working 21 days how many days will 14 persons take to complete your work 1
ID: #5582
Chain Rule
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#5582Q ID
DifficultDifficulty
Chain RuleTopic
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Correct Answer: Option C
Explanation
solution:
let the required the number of days be x
less person,more days( indirect proportional)
less hours ,more days(indirect proportional)
more works more days( direct proportional)
persons 14:15::21:x
hours per day 6:8::21:x
work y:3/2y::21:x 14×6yx=15×8×3/2y×21
x=15×8×3y×21/2×14×6y
x=45
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