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Numerical Ability
Ratio and Proportion
In a class there are 60% of girls of which 25% poor. What is the probability that a poor girl is selected is leader?
Read Solution (Total 14)
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- Assume total students in the class = 100
Then Girls = 60% (100) = 60
Poor girls = 25% (60) = 15
So probability that a poor girls is selected leader = Poor girls / Total students = 15/100 = 15% - 8 years agoHelpfull: Yes(45) No(2)
- total girls are=60%=60
poor girls= 60*25/100=15
probability the poor girl is selected as a leader=15/60=1/4 - 8 years agoHelpfull: Yes(7) No(9)
- No relation is given between poor girl and a leader.
So it is not possible to find given probability. - 8 years agoHelpfull: Yes(4) No(4)
- hi guys...
is there any off-campus drive of tcs again for 2015 passouts?? - 8 years agoHelpfull: Yes(2) No(4)
- consider 100 students ....60% girls so 60 girls among them 25% poor so 25% of 60=15 so ans is 15/60=1/4
- 8 years agoHelpfull: Yes(2) No(5)
- 1-(40/100)-(45/100)=3/20
- 8 years agoHelpfull: Yes(2) No(0)
- Ans is 3/20
(15 C 1) / (100 C 1) - 8 years agoHelpfull: Yes(2) No(1)
- suppose there are 100 students are in the class
60 are girls
and 25% of 60 is 15
so probability is 15/100=.15
- 8 years agoHelpfull: Yes(2) No(0)
- .25.60=5/12
- 8 years agoHelpfull: Yes(1) No(0)
- 15/60 as 25% of 60 is 15 & from total of 60 girls we have to select leader
- 8 years agoHelpfull: Yes(0) No(1)
- I have answered exactly 19 questions with out star questions what are my chances of clearing written in the tcs off campus drive
- 8 years agoHelpfull: Yes(0) No(3)
- prob of girl sel is =60/100
prob of girl is poor=25/60
prob of poor girl sel=(0.6)*(5/12)=1/4 - 8 years agoHelpfull: Yes(0) No(2)
- as here we see that the total no of girls is 60.
total no of poor girls=25/100*60=15 - 5 years agoHelpfull: Yes(0) No(0)
- Assume total students in the class = 100
Then Girls = 60% (100) = 60
Poor girls = 25% (60) = 15
So probability that a poor girls is selected leader = Poor girls / Total students = 15/100 = 15% - 1 year agoHelpfull: Yes(0) No(0)
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