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14 Sep 2022, 01:30
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
51% (01:23) correct
49%
(01:41)
wrong
based on 43
sessions
History
Date
Time
Result
Not Attempted Yet
If x and y are non-negative integer, what is the value of xy?
(1) 7x = 13y
(2) 3x = 9y
(1) 7x = 13y
(2) 3x = 9y
14 Sep 2022, 02:36
Kudos
Bookmarks
If x and y are non-negative integer, what is the value of xy?
(1) \(7x = 13y\)
Insufficient
One equation is not sufficient. Since there are two variables.
(2) \(3x = 9y\)
Insufficient
One equation is not sufficient. Since there are two variables.
Combining both statement 1 & 2
\(x=\frac{13}{7}y\)
\(x=\frac{9}{3}y\)
\(\frac{13}{7}=\frac{9}{3}y\)
\((13/7-3)y=0\)
therefore \(y=0\), hence \(x=0\) and \(xy=0\)
Answer is Opion C
(1) \(7x = 13y\)
Insufficient
One equation is not sufficient. Since there are two variables.
(2) \(3x = 9y\)
Insufficient
One equation is not sufficient. Since there are two variables.
Combining both statement 1 & 2
\(x=\frac{13}{7}y\)
\(x=\frac{9}{3}y\)
\(\frac{13}{7}=\frac{9}{3}y\)
\((13/7-3)y=0\)
therefore \(y=0\), hence \(x=0\) and \(xy=0\)
Answer is Opion C
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