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  • Provide Solution For R.D. Sharma Maths Class 12 Chapter 30 Probaility Exercise 30.5 Question 19 Maths Textbook Solution.

Provide Solution For  R.D. Sharma Maths Class 12 Chapter 30 Probaility  Exercise 30.5 Question 19 Maths Textbook Solution.

Answers (1)

Answer:\frac{6}{2197}

Hint: You must know the rules of finding probability functions.

Given: Three cards are drawn with replacement from 52 cards

Solution:

\begin{aligned} &P(\text { king })=P(A)=\frac{4}{52} \\ &P(\text { queen })=P(B)=\frac{4}{52} \\ &P(\text { jack })=P(C)=\frac{4}{52} \end{aligned}

\begin{aligned} &P(\text { king, queen, jack })=3 \backslash P(A) \times P(B) \times P(C) \\ &=3 \times 2 \times \frac{4}{52} \times \frac{4}{52} \times \frac{4}{52} \\ &=\frac{6}{2197} \end{aligned}

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