Latest Elitmus Aptitude Question SOLUTION: There are 5 different boxes named a,b,c,d,e. there are two balls red and green.a box is to be filled with one ball either red or blue. what is the probability that no two blue ball

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(#M40033529) ELITMUS Numerical Ability question asked in March 2 Keep an EYE

There are 5 different boxes named a,b,c,d,e. there are two balls red and green.a box is to be filled with one ball either red or blue. what is the probability that no two blue balls are adjacent to each other.

Asked In Elitmus manivikas (10 years ago)

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Read Solution (8) :

deep chandra bhatt  (10 years ago)

ans 13/32
5 red rrrrr prob 1
4 red 1blue rrrrb,rrrbr,rrbrr,rbrrr,brrrr prpb 5
3 red 2blue rbrbr rbrrb rrbrb brbrr brrbr brrrb prob 6
2 red 3 blue brbrb prob 1
total 13/32

Is this solution Helpfull? Yes (27) | No (4)  

Neelu  (10 years ago)

unable to understand the question

Is this solution Helpfull? Yes (11) | No (3)  

komal pandhariwal  (10 years ago)

lets see how many blue balls can be adjacent to each other:
B,B,B,B,B -1
B,B,B,B------>B,B,B,B,R ; R,B,B,B,B -2
B,B,B-------->B,B,B,R,R ; R,B,B,B,R ; R,R,B,B,B -3
B,B---------->B,B,R,R/B,R ; B,B,R,R,R/B ; R,B,B,R,R/B ; R/B,R,B,B,R ; R,R/B,R,B,B ; R/B,R,R,B,B -6*2 =12
B,B,R,B,B - 1
ie total= 19
so total = 2^6-19 = 13
ie 13/32

Is this solution Helpfull? Yes (6) | No   

ankita jain  (10 years ago)

how total outcome is 32??

Is this solution Helpfull? Yes (5) | No   

abhay singh  (9 years ago)

as there are 5 boxes and 2 balls to be filled therefore total outcomes
2^5=32

Is this solution Helpfull? Yes (3) | No   

ARPIT SRIVASTAVA  (10 years ago)

Its 13/32..
There will be 13 such combinations

RBRBR , BRBRB , RRRRR , RRRRB and so on...
Ans will be 13/32

Is this solution Helpfull? Yes (2) | No   

rahul  (4 years ago)

The denominator is 32 because it represent all the cases, which (according to p&c ) is 2*2*2*2*2.
Every box has 2 choices, to have a Blue ball or a red ball.

Is this solution Helpfull? Yes (1) | No   

Vineet Jain  (10 years ago)

how denominator is 32?

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