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14 Mar 2019, 09:59
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B
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Difficulty:
25%
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Question Stats:
82% (02:25) correct
18%
(02:49)
wrong
based on 591
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Santa estimates that 10% of the children in the world have been good this year but do not celebrate Christmas, and that 50% of the children who celebrate Christmas have been good this year. If 40% of the children in the world have been good, what percentage of children in the world are not good and do not celebrate Christmas?
A. 20%
B. 30%
C. 40%
D. 60%
E. 70%
A. 20%
B. 30%
C. 40%
D. 60%
E. 70%
19 Mar 2019, 11:52
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AkshdeepS
_______________G______NG________Total
C:_____________30______30_________60
DC:____________10______30_________40
total:___________40______60________100
imo b
General Discussion
19 Mar 2019, 12:26
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Assume total children=100.
Good =40 (given in last sentence)
So NOT Good=60.
Good but NOT Celebrate Christmas = 10 (given in the first line )
So Good and celebrate= 40-10=30 which is 50% of who celebrated Christmas. thus, Number who celebrated Christmas= 60.
Now fill the gaps i.e.
Celebrated Christmas but NOT Good =30 &
NOT CELEBRATED CHRISTMAS & NOT GOOD= 30. (Option D).
Posted from my mobile device
Good =40 (given in last sentence)
So NOT Good=60.
Good but NOT Celebrate Christmas = 10 (given in the first line )
So Good and celebrate= 40-10=30 which is 50% of who celebrated Christmas. thus, Number who celebrated Christmas= 60.
Now fill the gaps i.e.
Celebrated Christmas but NOT Good =30 &
NOT CELEBRATED CHRISTMAS & NOT GOOD= 30. (Option D).
Posted from my mobile device
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