

Problems on Numbers - General Aptitude
Each of the questions given below consists of a question followed by three statements. You have to study the question and the statements and decide which of the statement(s) is/are necessary to answer the question.
Q1:
A
I and II only
B
I and III only
C
All I, II and III
D I, and either II or III
E
Even with all I, II and III, answer cannot be give.
ANS:E - Even with all I, II and III, answer cannot be give. Let the tens and units digit be x and y respectively.
I. (10x + y) - (10y + x) |


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