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Provide Solution For R.D. Sharma Maths Class 12 Chapter 30 Probaility  Exercise 30.5 Question 14 Sub Question 1 Maths Textbook Solution.

Answers (1)

Answer:\frac{1}{35}

Hint: You must know the rules of finding probability.

Given:

Probability of husband will be selected =\frac{1}{7}=P(A)

Probability of wife will be selected =\frac{1}{5}=P(B)

Solution:

\begin{aligned} &P(\text { husband selected })=\frac{1}{7} \\ &P(\text { wife selected })=\frac{1}{5} \\ &P(\text { both will be selected })=P(A \cap B) \\ &=P(A) P(B) \\ &=\frac{1}{7} \times \frac{1}{5} \\ &=\frac{1}{35} \end{aligned}

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