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  • Provide Solution For R. D. Sharma Maths Class 12 Chapter 30 Probability Exercise Multiple Choice Questions Question 18 Maths Textbook Solution.

Provide Solution For  R. D. Sharma Maths Class 12 Chapter 30 Probability  Exercise Multiple Choice Questions Question 18 Maths Textbook Solution.

Answers (1)

Answer:(d)

Hint: You must know the rules of finding probability.

Given: Bag = (5 brown + 4 white socks)

A man pulls out 2 socks

Solution: P (same coloured socks) = P (both brown) + P (both white)

\begin{aligned} &=\frac{5}{9} \times \frac{4}{8}+\frac{4}{9} \times \frac{3}{8} \\\\ &=\frac{20}{72}+\frac{12}{72} \\\\ &=\frac{32}{72} \\\\ &=\frac{4}{9}=\frac{48}{108} \end{aligned}

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