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Question 970588: The sum of two digit number and its reverse is 99. how many two digit number can satisfy this condition
Answer by satyareddy22(84)   (Show Source):
You can put this solution on YOUR website! Let 10x + y be the two digit number.
The reverse number is 10y + x.
Given that the sum of two digit number and its reverse is 99.
=> (10x + y) + (10y + x) = 99
=> 11x + 11y = 99
=> x + y = 9
The two digit numbers that can satisfy this condition are
45,54
27,72
81,18
36,63
90
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