The sum of two number is 10 Their product is 20. Find the sum of the reciprocals of the two numbers.

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Accepted Answer

Let the number be a and b Then a + b = 10 ..........(i) ab = 20 ........(ii) Sum of reciprocal = 1/a + 1/b = (a + b) / ab = 10/20 = 1/2

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