Multiple choice

A box contains 25 parts of which 10 are defective. Two parts are being drawn simultaneously in a random manner from the box. The probability of both the parts being good is

  1. $\frac{7}{20}$
  2. $\frac{42}{125}$
  3. $\frac{25}{29}$
  4. $\frac{5}{9}$
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A Correct answer
Explanation

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