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Question 31 (OR 2nd Question) - CBSE Class 12 Sample Paper for 2020 Boards

Last updated at Oct. 1, 2019 by

There are three coins, one is a two headed coin (having head on both the faces), another is a biased coin that comes up heads 75% of the time and the third is an unbiased coin. One of the three coins is chosen at random and tossed. If It shows head. What is probability that it was the two headed coin ?

This question is exactly same as Ex 13.3, 6

Please check solution and video here

https://www.teachoo.com/4100/765/Ex-13.3--6---There-are-three-coins.-One-is-two-headed-coin/category/Ex-13.3/

  1. Class 12
  2. Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

    3. CBSE Class 12 Sample Paper for 2020 Boards

    CBSE Class 12 Sample Paper for 2019 Boards →

Transcript

Question 31 (OR 2nd Question) There are three coins, one is a two headed coin (having head on both the faces), another is a biased coin that comes up heads 75% of the time and the third is an unbiased coin. One of the three coins is chosen at random and tossed. If It shows head. What is probability that it was the two headed coin ?

Class 12
Solutions of Sample Papers and Past Year Papers - for Class 12 Boards

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.