Correct Answer: Option B
Let the ten's and unit digit be x and 8/x respectively. Then, (10x+8/x)+18=10× 8/x +x => 10x2 + 8 + 18x = 80 + x2
=> 9x2 + 18x - 72 = 0
=> x2 + 2x - 8 = 0
=> (x + 4)(x - 2) = 0
=>x = 2.
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