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Need solution for RD Sharma Maths Class 12 Chapter 30 Probability Exercise Case Study Based  Question, question 6 sub question (iv).

Answers (1)

Answer:

            (b)

Hint:

            You must know rules of finding probability

Given:

            Chance of question solved by Aarushi is 30%, Avni is 25% and Mira is 45%, the probability error done by Aarushi 0.01, Avni 0.012, Mira 0.02

Solution:

P (Error is not done by Aarushi) = 1 -P (Aarush)

=1 - 0.01

=0.99

So, (b) is correct answer

Posted by

infoexpert24

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