1. The sum of the digits to a two digit number is 14. The difference between the first digit and the second digit of the two digit number is 4. What is the two digit number ?
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- By: anil on 05 May 2019 01.27 amLet the number be $$10x + y$$ Acc to ques, => $$x + y = 14$$ and $$x - y = 4$$ Adding both equations, we get : => $$2x = 18$$ => $$x = 9$$ and $$y = 5$$ $$ herefore$$ Number = 95
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Conditions :
(i) If the first digit is odd and the last digit is even, the codes for the first and last digits are to be interchanged.
(ii) If both the first and the last digits are even, both are to be coded as *.
(iii) If both the first and the last digits are odd, both are to be coded as $.215349
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