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In a class there are 60% girls and out of them 45% are poor. A student is selected at random, find the probability that the student is a poor girl.
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- ans:27/100
let there be 100 students
no of girls = 60
45% of 60 are poor,poor girls=27
probability=27/100 - 11 years agoHelpfull: Yes(51) No(2)
- Let us suppose the total strength of class be 100.
The the number of girls will be 60 and hence the number of poor girls will be
60*(45/100)=27
So the probability of poor girl will be =27/100 - 11 years agoHelpfull: Yes(18) No(0)
- ans: 27
prob=Possible events/total events
possible = 45%(60%) ie 45/100(60/100)=27/100
total=100
divinding both we get 27 .!! - 11 years agoHelpfull: Yes(8) No(2)
- answer is 0.27.
probability of girl selected at random 0.6
probability of poor girl among girls is 0.45
therefore probability of poor girl=(0.6)*(0.45)=0.27 - 11 years agoHelpfull: Yes(2) No(0)
- @SAHITHI PRIYADARSHINI
probability can't exceed "1"
answer is 27/100 only..:) - 11 years agoHelpfull: Yes(2) No(0)
- 18/100
let total no of student 100 then total no of girls 60 and poor girls 45% of 60 girls i.e 18 - 11 years agoHelpfull: Yes(0) No(22)
- 18/100=0.18
- 11 years agoHelpfull: Yes(0) No(12)
- 45/100*60/100*x*100/x=27/100
- 11 years agoHelpfull: Yes(0) No(1)
- 45%of 60%= 18%ans
- 11 years agoHelpfull: Yes(0) No(4)
- probability=27/100
- 11 years agoHelpfull: Yes(0) No(0)
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