The sum of the digite of a two digit number is 9. if 27 is added to it, the digits of the neembers get reversed . The number is ?
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Let the numbers be x and y respectively.
Then
A/q
x + y = 9 ..........................[1]
10x+y + 27 = 10y+x
9x-9y = - 27
x - y = -3 ............................[2]
then adding both equations, we get.....
2x = 6
x = 6/2 = 3
and
y = 9-x = 9-3 = 6
then
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