A boy goes to shop and buys a big book.

He take the book to a medical student and ask's him how much time will he
take to finish the book.

A Medical Student says 6 month's minimum.

Then he goes to a law student and ask's the same question, he says minimum 3
months

Then he does a wise thing and goes to an engineer and asks the same question

How much time will you take to finish the book???
The engineer says



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EXAM KAB HAI ...