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Let the efficiency of a man = 'x' units/hour
Total work = 20 × x × 6 × 25 = 3000x units
Number of days taken by 30 men working 8 hours/day =
= 3000x ÷ (30 × x × 8)
= 3000x ÷ 240x = 12.5 days
The Egg shell is made up of which of the following?
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Which element is denoted by the atomic number 28?
How many periods are there in the Modern Periodic Table?
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Pepperonil, ethyl acetate, butyraldehyde and nitrate are some common adulterants used in ____________
______is used to coat Galvanised Iron.
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Amalgam is a mixture of
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