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12 Jul 2016, 04:35
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
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Question Stats:
82% (01:48) correct
18%
(02:12)
wrong
based on 130
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In the Hillside summer camp there are 50 children. 90% of the children are boys and the rest are girls. The camp administrator decided to make the number of girls only 5% of the total number of children in the camp. How many more boys must she bring to make that happen?
A. 50.
B. 45.
C. 40.
D. 30.
E. 25.
A. 50.
B. 45.
C. 40.
D. 30.
E. 25.
12 Jul 2016, 05:23
Kudos
Bookmarks
Bunuel
In the Hillside summer camp there are 50 children. 90% of the children are boys and the rest are girls. The camp administrator decided to make the number of girls only 5% of the total number of children in the camp. How many more boys must she bring to make that happen?
A. 50.
B. 45.
C. 40.
D. 30.
E. 25.
A. 50.
B. 45.
C. 40.
D. 30.
E. 25.
Given there are 50 students , 90% of 50 = 45 boys and remaining 5 girls.
Now here 90% are Boys and 10% are Girls.
Now question is asking about how many boys do we need to add, to make the girls percentage to 5 or 5%..
If we add 50 to existing 45 then the count will be 95 and the girls number will be 5 as it.
Now boys are 95% and girls are 5%. ( out of 100 students = 95 boys + 5 girls ).
IMO option A is correct.
OA please...will correct if I missed anything.
12 Jul 2016, 07:53
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msk0657
Bunuel
In the Hillside summer camp there are 50 children. 90% of the children are boys and the rest are girls. The camp administrator decided to make the number of girls only 5% of the total number of children in the camp. How many more boys must she bring to make that happen?
A. 50.
B. 45.
C. 40.
D. 30.
E. 25.
A. 50.
B. 45.
C. 40.
D. 30.
E. 25.
Given there are 50 students , 90% of 50 = 45 boys and remaining 5 girls.
Now here 90% are Boys and 10% are Girls.
Now question is asking about how many boys do we need to add, to make the girls percentage to 5 or 5%..
If we add 50 to existing 45 then the count will be 95 and the girls number will be 5 as it.
Now boys are 95% and girls are 5%. ( out of 100 students = 95 boys + 5 girls ).
IMO option A is correct.
OA please...will correct if I missed anything.
OA is indeed A
if u count back with your solution then total number of student is 50(earlier)+50(added)=100
And number of boys=45(earlier)+50(added)=95
So boys%=95/100=95%
And thus girls will constitute only 5%(required) of new total number of student(ie-100)
Ans A
