Present age of Preti, Purnima and Payal = 24 × 3 = 72 years Let present age of Purnima be ‘x’ years. Present age of Payal = (x + 5) years Present age of Preti = (x + 10) years According to the question, => (x + 10) + x + (x + 5) = 72 => 3x = 57 => x = 19 Preti’s age 9 years ago = (19 + 10) - 9 = 20 years
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Attributes that do not exist in the physical database, but their values are derived from other attributes present in the database.
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In a compiler, keywords of a language are recognized during
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Sending a packet to all destination simultaneously is called
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