Latest Athenahealth Aptitude Question SOLUTION: Q. One lady has 2 children, one of her child is boy, what is the probability of having both are boys

• Placement Papers
• /
• Athenahealth
• /
• Numerical Ability
• /
• Probability

Athenahealth Question Papers: ATHENAHEALTH Company Profile

(#M40031114) ATHENAHEALTH Numerical Ability question Keep an EYE

Q. One lady has 2 children, one of her child is boy, what is the probability of having both are boys

Asked In Athenahealth DIVYA MURUGESH (10 years ago)

Unsolved Read Solution (6)

Is this Puzzle helpful?   (4)   (1) Submit Your Solution Probability

Read Solution (6) :

RAKESH  (10 years ago)

n(S)=one of her child is boy out of 2 children=BB,BG=2
n(E)=both are boys=BB=1
so p=n(E)/n(s)=1/2

Is this solution Helpfull? Yes (16) | No (7)  

maniraj  (10 years ago)

In a family with 2 children there are four possibilities:

1) the first child is a boy and the second child is a boy (bb)

2) the first child is a boy and the second child is a girl (bg)

3) the first child is a girl and the second child is a boy (gb)

4) the first child is a girl and the second child is a girl (gg)

Since we are given that at least one child is a girl there are three possibilities: bg, gb, or gg. Out of those three possibilities the only one with two girls is gg. Hence the probability is 1/3.

Is this solution Helpfull? Yes (10) | No (9)  

mahima srivastava  (10 years ago)

there are just two cases either both boys or one boy and one girl
so prob= 1/2

Is this solution Helpfull? Yes (5) | No (1)  

Gowrim  (9 years ago)

answer is 1/3
because there is surely one boy. So the possibilities are bg,gb,bb

the probability of having both boys : 1/3

Is this solution Helpfull? Yes (2) | No (4)  

Ashiq  (9 years ago)

one is boy(given).
So other one is either boy or girl.So (1/2) is the prob for both boys.

Is this solution Helpfull? Yes (2) | No   

ayappan  (8 years ago)

possibilities are bb, bg , gb so bb is 1/3

Is this solution Helpfull? Yes | No (1)  

Please Login to Read Solution.