In a survey of 248 people, 156 are married, 70 are employed , and
25 percent of those who are married are self employed. If a person
is to be randomely selected from those surveyed,what is the probability
that the person selected will be self - employed but not married?
1.1/8
2.4/31
3.117/248
4.1/4
5.31/117.
A
Gmat prep 2 ques
This topic has expert replies
-
- Legendary Member
- Posts: 752
- Joined: Sun May 17, 2009 11:04 pm
- Location: Tokyo
- Thanked: 81 times
- GMAT Score:680
abhinav,
check the image.
248-(70+156)=22 will be the number of people self employed and not married.
Though I would say, the question is a little ambiguous.
Thanks
Ok I a wrong here. I don't know what I was thinking. I guess sitting in a Japanese office does stuff to your mind.
check the image.
248-(70+156)=22 will be the number of people self employed and not married.
Though I would say, the question is a little ambiguous.
Thanks
Ok I a wrong here. I don't know what I was thinking. I guess sitting in a Japanese office does stuff to your mind.
Last edited by tohellandback on Mon Jun 08, 2009 8:02 pm, edited 1 time in total.
The powers of two are bloody impolite!!
Those words "employed" and "self employed" threw me completely off and I started breaking this down to Self employed- non -self employed (i.e.e working for someone else) and unemployed and I was sinking into a quagmire. Later on I realized that employed should be replaced by self-employed in the question and the answer comes to 1/8.
My approach is to solve this by drawing a table with rows comprising of married and unmarried and columns comprising of self-employed and unemployed and you should get this 31/248 = 1/8
My approach is to solve this by drawing a table with rows comprising of married and unmarried and columns comprising of self-employed and unemployed and you should get this 31/248 = 1/8
200 or 800. It don't matter no more.
-
- Legendary Member
- Posts: 752
- Joined: Sun May 17, 2009 11:04 pm
- Location: Tokyo
- Thanked: 81 times
- GMAT Score:680
thanks Yogami,
I think you are right. pheww lost my few pecious minutes.
)
I think you are right. pheww lost my few pecious minutes.
![Smile :)](./images/smilies/smile.png)
The powers of two are bloody impolite!!