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Vincen
- Legendary Member
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- Joined: Thu Sep 07, 2017 2:49 pm
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xy is a 2 digit integer whose reverse, yx, is x less than twice xy. What is the sum of x and y?
A) 8
B) 9
C) 11
D) 12
E) 13
The OA is E.
What formula solves this PS question? I couldn't establish it.
A) 8
B) 9
C) 11
D) 12
E) 13
The OA is E.
What formula solves this PS question? I couldn't establish it.
