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

1
3/5
1/2
11//6

Correct Answer: 1/2

Explanation:

Here, M + N = 10 and MN = 20
According to the question,
(1/M) + (1/N) = (M + N) / MN = 10/20 = 1/2

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