1.

If x + y = 25 and xy = 35, then (1/x) + (1/y) =?1. \(\sqrt{5\over7}\)2. 7/53. 5/74. \(\sqrt{7\over5}\)

Answer» Correct Answer - Option 3 : 5/7

Given:

x + y = 25 and xy = 35

We have to find the value of 1/x + 1/y

Calculation:

1/x + 1/y

⇒ (y + x)/xy     [Using the given values]

⇒ 25/35

⇒ 5/7

∴ Required value of (1/x + 1/y) is (5/7).



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