45+54=99
99*2=198
198 is the answer.
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Possibility of two digit no whose sum is 9 18,27,36,45,54,63,72,81 Subract 9 with each no mentioned above output is 9,18,27,36,45,54,63,72 See after 4th comma 54 and 45. Reverse 54=45. now 45 is 9 less than 54. So the original no is 54
45, 60, and 75
(18 + 36) + (45 - 27) = 54 + 18 = 72
45
45, 60, and 75