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01 Nov 2019, 08:04
Kudos
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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:
65%
(hard)
Question Stats:
67% (02:40) correct
33%
(02:33)
wrong
based on 476
sessions
History
Date
Time
Result
Not Attempted Yet
Eighty students are attending summer school courses at Beaver Falls High School.X have registered for Spanish,Y have registered for Math, and Z have registered for neither Spanish nor Math.How many have registered for BOTH Spanish and Math?
(1) Thirty students are not taking Spanish.
(2) Y=40% of X,while Z=75% of Y
Are You Up For the Challenge: 700 Level Questions
(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) Thirty students are not taking Spanish.
(2) Y=40% of X,while Z=75% of Y
Are You Up For the Challenge: 700 Level Questions
(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.
01 Nov 2019, 08:36
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Bunuel
Let the number of students who registered for both = A
Refer to table structure,
(1) Thirty students are not taking Spanish.
--> Insufficient
(2) Y=40% of X,while Z=75% of Y
--> Insufficient
Combining (1) & (2),
--> A + 15 = 20
--> A = 5 --> Sufficient
IMO Option C
Attachments
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1.png [ 4.34 KiB | Viewed 7409 times ]
02 Nov 2019, 04:57
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Bunuel
solve using 2x2
the question would be solved using both stmnts
---s---ns----total
M--5---15----20
NM- 45--15---60
total--50--30--80
IMO C ; 5
