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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
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