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03 Dec 2024, 01:30
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
64% (01:55) correct
36%
(01:58)
wrong
based on 166
sessions
History
Date
Time
Result
Not Attempted Yet
What percent of the 300 students are girls who had taken a course in writing?
(1) 1/2 of the girls and 2/5 of the boys had taken a course in writing.
(2) The number of girls who had taken a course in writing is 6 more than the number of the boys who had taken a course in writing.
(A) Statement 1 alone is sufficient, but statement 2 alone is not.
(B) Statement 2 alone is sufficient, but statement 1 alone is not.
(C) Both statements together are sufficient, but neither alone is sufficient.
(D) Each statement alone is sufficient.
(E) Neither statement is sufficient, even when combined.
(1) 1/2 of the girls and 2/5 of the boys had taken a course in writing.
(2) The number of girls who had taken a course in writing is 6 more than the number of the boys who had taken a course in writing.
(A) Statement 1 alone is sufficient, but statement 2 alone is not.
(B) Statement 2 alone is sufficient, but statement 1 alone is not.
(C) Both statements together are sufficient, but neither alone is sufficient.
(D) Each statement alone is sufficient.
(E) Neither statement is sufficient, even when combined.
03 Dec 2024, 03:51
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Bunuel
To find - What percent of the 300 students are girls who had taken a course in writing?
(1) 1/2 of the girls and 2/5 of the boys had taken a course in writing.
but we don't know the people who had taken a course in writing amongst the 300 students
insufficient
(2) The number of girls who had taken a course in writing is 6 more than the number of the boys who had taken a course in writing.
People who had taken the course in writing - we don't know still
G B
x+6 x
total people who has taken the course in writing 2x+6
Still insufficient
combining
| G | B | ||
| writing | x+6 | x | 2x+6 |
| W' | x+6 | 3x/2 | 5x/2 +6 |
| 2x+12 | 5x/2 | 300 |
We can get the value for x and then accordingly solve for percent of 300 students that are girls who had taken a course in writing.
So IMO C
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