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If \(3 D 4=6\) and \(4 D 6=8\) what is \(D =\) ?

If \(3 D 4=6\) and \(4 D 6=8\) what is \(D =\) ?
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  • A 7
  • B 8
  • C 16
  • D 9
Correct Answer: Option D
Explanation:
Adding 263 and 441 with 9 (from the option) as the base gives 714 .

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