Class 7 Exam  >  Class 7 Questions  >  There are two baskets A and B. Basket A conta... Start Learning for Free
There are two baskets A and B. Basket A contains 4 red and 4 blue marbles while Basket B
does not contain any marble. Randomly three marbles are selected one by one without
replacement from basket A and put it in the basket B. After that one marble is selected from
each basket then find the probability of selected marble from basket A is red coloured.?
Most Upvoted Answer
There are two baskets A and B. Basket A contains 4 red and 4 blue marb...
Problem:
There are two baskets, A and B. Basket A contains 4 red and 4 blue marbles, while Basket B does not contain any marbles. Three marbles are randomly selected without replacement from Basket A and placed in Basket B. One marble is then selected from each basket. What is the probability of selecting a red marble from Basket A?

Solution:

Step 1: Understanding the Problem
To solve this problem, we need to calculate the probability of selecting a red marble from Basket A after three marbles have been transferred to Basket B.

Step 2: Analyzing the Situation
Let's analyze the situation before and after the marbles are transferred to Basket B:

Before the Transfer:
- Basket A contains 4 red and 4 blue marbles.
- Basket B is empty.

After the Transfer:
- Basket A contains 1 red and 1 blue marble.
- Basket B contains 3 marbles (2 red and 1 blue).

Step 3: Calculating the Probability
To calculate the probability of selecting a red marble from Basket A, we need to determine the total number of possible outcomes and the number of favorable outcomes.

Total Number of Possible Outcomes:
Before the transfer, the total number of possible outcomes is the number of ways we can select 3 marbles from Basket A without replacement. This can be calculated using the combination formula:

C(8, 3) = 8! / (3! * (8-3)!) = 56

After the transfer, the total number of possible outcomes is the number of ways we can select 1 marble from each basket. Since Basket A has 2 marbles (1 red and 1 blue) and Basket B has 3 marbles (2 red and 1 blue), the total number of possible outcomes can be calculated as:

2 * 3 = 6

Number of Favorable Outcomes:
The number of favorable outcomes is the number of ways we can select a red marble from Basket A. After the transfer, Basket A contains 1 red marble and 1 blue marble. Therefore, the number of favorable outcomes is 1.

Step 4: Calculating the Probability
The probability of selecting a red marble from Basket A can be calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

Probability = Number of Favorable Outcomes / Total Number of Possible Outcomes
Probability = 1 / 6
Probability = 1/6 = 0.1667 (rounded to four decimal places)

Step 5: Conclusion
The probability of selecting a red marble from Basket A, after three marbles have been transferred to Basket B, is approximately 0.1667 or 16.67%.
Attention Class 7 Students!
To make sure you are not studying endlessly, EduRev has designed Class 7 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 7.
Explore Courses for Class 7 exam

Top Courses for Class 7

There are two baskets A and B. Basket A contains 4 red and 4 blue marbles while Basket B does not contain any marble. Randomly three marbles are selected one by one without replacement from basket A and put it in the basket B. After that one marble is selected from each basket then find the probability of selected marble from basket A is red coloured.?
Question Description
There are two baskets A and B. Basket A contains 4 red and 4 blue marbles while Basket B does not contain any marble. Randomly three marbles are selected one by one without replacement from basket A and put it in the basket B. After that one marble is selected from each basket then find the probability of selected marble from basket A is red coloured.? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about There are two baskets A and B. Basket A contains 4 red and 4 blue marbles while Basket B does not contain any marble. Randomly three marbles are selected one by one without replacement from basket A and put it in the basket B. After that one marble is selected from each basket then find the probability of selected marble from basket A is red coloured.? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for There are two baskets A and B. Basket A contains 4 red and 4 blue marbles while Basket B does not contain any marble. Randomly three marbles are selected one by one without replacement from basket A and put it in the basket B. After that one marble is selected from each basket then find the probability of selected marble from basket A is red coloured.?.
Solutions for There are two baskets A and B. Basket A contains 4 red and 4 blue marbles while Basket B does not contain any marble. Randomly three marbles are selected one by one without replacement from basket A and put it in the basket B. After that one marble is selected from each basket then find the probability of selected marble from basket A is red coloured.? in English & in Hindi are available as part of our courses for Class 7. Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free.
Here you can find the meaning of There are two baskets A and B. Basket A contains 4 red and 4 blue marbles while Basket B does not contain any marble. Randomly three marbles are selected one by one without replacement from basket A and put it in the basket B. After that one marble is selected from each basket then find the probability of selected marble from basket A is red coloured.? defined & explained in the simplest way possible. Besides giving the explanation of There are two baskets A and B. Basket A contains 4 red and 4 blue marbles while Basket B does not contain any marble. Randomly three marbles are selected one by one without replacement from basket A and put it in the basket B. After that one marble is selected from each basket then find the probability of selected marble from basket A is red coloured.?, a detailed solution for There are two baskets A and B. Basket A contains 4 red and 4 blue marbles while Basket B does not contain any marble. Randomly three marbles are selected one by one without replacement from basket A and put it in the basket B. After that one marble is selected from each basket then find the probability of selected marble from basket A is red coloured.? has been provided alongside types of There are two baskets A and B. Basket A contains 4 red and 4 blue marbles while Basket B does not contain any marble. Randomly three marbles are selected one by one without replacement from basket A and put it in the basket B. After that one marble is selected from each basket then find the probability of selected marble from basket A is red coloured.? theory, EduRev gives you an ample number of questions to practice There are two baskets A and B. Basket A contains 4 red and 4 blue marbles while Basket B does not contain any marble. Randomly three marbles are selected one by one without replacement from basket A and put it in the basket B. After that one marble is selected from each basket then find the probability of selected marble from basket A is red coloured.? tests, examples and also practice Class 7 tests.
Explore Courses for Class 7 exam

Top Courses for Class 7

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev