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23. In a class there are 60% of girls of which 25% poor. What is the probability that a poor girl is selected is leader?
a)15% b)50% c)80% d)30%
Read Solution (Total 8)
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- a) 15%
probability for a girl to be leader is 60% becuase there are 60% girls in class.
after this probability that tht girl will be poor is 25% of 60 ie..15%
so answer is a) 15% - 12 years agoHelpfull: Yes(32) No(0)
- total girls=60%
poor girls=25%
probability poor girl taken=60*25/100=15%
ans:a - 12 years agoHelpfull: Yes(14) No(0)
- answer will be 15%
girls=60%
poor gilrs=25%60 ie 15%
so probability that a girl will be poor is 15% - 12 years agoHelpfull: Yes(6) No(0)
- answer is 15%
- 12 years agoHelpfull: Yes(3) No(4)
- ans=15%
60*(25/100) - 12 years agoHelpfull: Yes(2) No(0)
- assume there are 100 students in the class.
out of which 60%(given) are girls and 40%(100%-60%) boys.
so there are 60 girls and 40 boys.
25% of the girls are poor.
therefore the probability that a poor girl selected as a leader ,out of 100 students is
(25/100)*60=15
15 girls are poor
therefore (15/100)*100=15%
ans:15% - 10 years agoHelpfull: Yes(1) No(0)
- ans is 504
- 12 years agoHelpfull: Yes(0) No(18)
- option a is correct....
- 12 years agoHelpfull: Yes(0) No(1)
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