4 draughtsman can complete a drawing in 10 deays .after 6 days ,2 Extra draughtsman joind in group .how many day are now saved
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Step-by-step explanation:
8 days. ..................
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ANSEWR:
Work done by 1 man in 1 day = 1/40
Work done by 4 men in 6 days = 6×4×(1/40) = 0.6
Work left = 1 - 0.6 = 0.4
Now 2 men join,
Work done by 6 men in 1 day = 6/40 = 3/20
Days needed = 20×0.4/3 = 8/3 days = 2.67 days
Total time taken = 6+2.67 = 8.67 days
No. Of days saved = 1.33
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