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The ten’s digit of a two-digit number is twice the unit’s digit.  ... ...

   The ten’s digit of a two-digit number is twice the unit’s digit.  Reversing the digits yields a new number that is 27 less than the original number.  Which one of the following is the original number?
(A) 12
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Press: Set C - Substitution (Plugging In)

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Replies to This Thread: 1 | ----
The ten’s digit of a two-digit number is twice the unit’s digit.  ... ... 
Posted: 08/05/2013 18:50
Actually,in the given we can know that the difference of reversing new number is 27 less than instead of 27. Why the answer is 63 whereas the inversing number is 36 so that the difference with the original one is 27 not 27 less than. Thank you, sorry I am still learning English anyway.
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Posted: 08/12/2013 16:32
Oktarico, terima kasih for using our app. The English can be confusing. 36 is 27 less than 63. It means 36 = 63 - 27. Another way of saying that is 63 is 27 more than 36. Or, the difference between 63 and 36 is 27.
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