Question
The present age of A is 5/2 times to that of his
marriage age. Present age of his brother is 1/5th of his present age. If A was married 36 years ago then find the present age of his brother.Solution
Let the age of A when he was married be x years. Present age of A = 5x/2 Present age of his brother = (1/5) × (5x/2) = x/2 According to Question, => x + 36 = 5/2x => 3/2x = 36 => x = 24 years Present age of his brother = (1/2) × 24 = 12 years
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A surrogate key is:
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