10 green balls. You are allowed to move the balls between
the boxes so that There are two boxes, one containing 10 red
balls and the other containing when you choose a box at
random and a ball at random from the chosen box, the
probability of getting a red ball is maximized. This maximum
probability is
- 7 Answers
- 21475 Views
- Schlumberger, TCS, I also Faced
- E-Mail Answers
Answer Posted / srinivas
First to select a box the probability is ½.
Initially if I select a ball from the box containing red balls the probability is 1.
After shifting the balls the maximum balls shifted is 10.
Then the probability of selecting a red ball from 20 is ½
Therefore the answer is ½*1+1/2*1/2 =3/4
| Is This Answer Correct ? | 2 Yes | 45 No |
Post New Answer View All Answers
Ganesh and Shankar travel abroad and take more luggage than the airlines allow. They have to pay extra money for it. They carry 52 kgs together and pay $60 and $100 respectively. Now, if the same luggage was carried by only Ganesh it would cost him $340. If the airlines charges only at one rate for extra luggage what is the maximum luggage that a person can carry without paying extra?
There were 36 chairs. how many ways can they be placed such that all rows have equal no. of chairs and atleast three chairs are there in each row and there are atleast three rows.
Hi Guys. I am an Instrumentation and Control Engineer(ICE) and have filled various PSU entrance exam forms. I wanted to know if anyone of you out there had any material for the preparation of the same. Any sort of material will be greatly appreciated. Be it previous year questions (Aptitude, GK or Technical) , study material or links to websites which do have this material. PSUs that I am going to appear in are HPCL, SAIL, ECIL and finally Gate. Any suggestions and advice is greatly welcomed. My E-Mail ID is kris_sreekanth86@yahoo.co.in
A string of alphanumeric is there. Find a string that starts with b and ends with 3 characters.
A and B decide to speak truth or lie on a day. Another person asks A if he is saying truth or lie. B listens to A whatever he answers. Now the person asks B what A had told. B replies as " A has told that he is a liar". What does B say?
Hi, Can anybody please send me the last year question papers of Oriental Bank of Commerce PO exam. My email ID is: yamini.friend14@gmail.com Thanks.
Hi friends i am new to this site. Pls provide me the KVB clerical exam model question papers. pls send to mail id mailstoaaa@gmail.com. Hope u guys will help me.
In a cycle race there are 5 persons named as J, K, L, M, N participated for 5 positions so that in how many number of ways can M make always before N?
A man said to woman " your only brother's son is my wife'sbrother". How is the woman related to the man's wife..
Two glasses were filled with 1/3 and 1/4 milk. they were filled with water &then mixed in tumbler. what is the percentage of milk in the resultant.
A cylinder is inserted in a sphere d/h = 2/3. Find the surface area of the cylinder ?
If m-4 is 7 more than n then m+9 is how much more than n+2
Q.19 Alok and Bhanu play the following min-max game. Given the expression N=9+X+Y–Z where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu would like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable. Assuming both play to their optimal strategies, the value of N at the end of the game would be 27 18 20 Answer is: 20 can someone plzzzzzzzzz tell me how this answer is calculeted???
Two trains are travelline at equilateral .Train A is travelling in the direction of earths spin.Other train B is travelling in opposite direction of earths spin.Which trains wheels will wear first?and why?
What number should be added to or subtracted from each term of the ratio 17 : 24 so that it becomes equal to 1 : 2.
