Latest TCS Aptitude Question SOLUTION: 124. There are 11 Boys in a family . Youngest child is a boy . What is the probability of all are boys?

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124. There are 11 Boys in a family . Youngest child is a boy . What is the probability of all are boys?

Asked In TCS M.JOSHNA (11 years ago)

Unsolved Read Solution (9)

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Read Solution (9) :

HARMEET KAUR  (11 years ago)

It is already given that there are 11 boys in a family .
youngest child is also boy.
If there are only 11 members in family, then
the probability of all are boys = 100%

If u consider parents ( father and mother) also, then there are 12 male members
and one female members, then
probability/ratio of male persons in that family = 12/13

Pls check the data and question if you mean something different.

Is this solution Helpfull? Yes (20) | No (5)  

divyang  (11 years ago)

as all 11 are boys
so probability is 100%

Is this solution Helpfull? Yes (5) | No (7)  

sumit kumar verma  (11 years ago)

1 since there are only boys

Is this solution Helpfull? Yes (3) | No (1)  

Diwakar Kumar  (10 years ago)

Probability of one boy is =1/2.

as one child is boy from 11 child . so all remaining child will be boy

= 1/2*1/2............10 times=1/1024

Is this solution Helpfull? Yes (3) | No (1)  

shailesh kumar mishra  (11 years ago)

1
since all r boys as in qustions

Is this solution Helpfull? Yes (1) | No   

k.selva kumari  (10 years ago)

as all 11 are boys
so probability is 100%

Is this solution Helpfull? Yes (1) | No (1)  

tejaswini  (11 years ago)

probability is 100% because there are all boys in that family

Is this solution Helpfull? Yes | No (1)  

nagatejesh  (11 years ago)

0.1 ie 1/10 bcs there are 11 members r there in that 1 they told ...remain 10 members prob is 1/10.....

Is this solution Helpfull? Yes | No (6)  

k.m  (11 years ago)

i think question is wrong actually question is 11 children in family then what is probability of all are boys

Is this solution Helpfull? Yes | No (1)  

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