In a school, there are 1000 students, out of which 430 are girls. It is known
that out of 430, 10% of the girls study in class XII. What is the probability that a student chosen randomly studies in Class XII given that the chosen student is a girl?
0.043
0.1
0.2
0.25
0.43
5-Day Free Trial
5-day free, full-access trial TTP
Available with Beat the GMAT members only code
MORE DETAILS
prob in school girls
This topic has expert replies
-
ankitns
- Senior | Next Rank: 100 Posts
- Posts: 59
- Joined: Mon Jul 13, 2009 8:58 pm
- Thanked: 10 times
- GMAT Score:710
If it is given that the chosen student is a girl, we know that it is one of the 430 girls. If 10% of these girls are class XII students, then the probability that the student chose randomly is [spoiler]10% = 10/100 = 0.1[/spoiler]
In a school, there are 1000 students, out of which 430 are girls. It is known
that out of 430, 10% of the girls study in class XII. What is the probability that a student chosen randomly studies in Class XII given that the chosen student is a girl?
0.043
0.1
0.2
0.25
0.43
Attempt 1: 710, 92% (Q 42, 63%; V 44, 97%)
Attempt 2: Coming soon!
Attempt 2: Coming soon!
-
kaulnikhil
- Master | Next Rank: 500 Posts
- Posts: 338
- Joined: Fri Apr 17, 2009 1:49 am
- Thanked: 9 times
- Followed by:3 members
