If 20 men working 8 hours per day can complete a piece of work in 21 days. How many hours per day must 48 men work to complete the same job in 7 days?
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If tan 450=cot∅, then the value of ∅, in radians is
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With the help of Panchayat Samitis, who regulates the money distribution among all the Gram Panchayats?
First country to make constitution is ________.
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Who is known as the father of computing?