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If "A" denotes "subtracted from", "B" denotes "added to", "C" denotes "divided by", "D" denotes "multiplied by", then which of the following statement is correct?

  • A.3 A 12 B 16 D 17 C 1 = 163
  • B.5 C 7 A 9 D 8 B 2 = 294
  • C.13 C 13 A 13 B 13 D 13 = 157
  • D.18 C 16 D 49 A 27 B 9 = 200

Answer: C

Correct answer: 13 C 13 A 13 B 13 D 13 = 157

Replacing the letters gives \( 13 \div 13 - 13 + 13 \times 13 \), and by the usual order \[ 1 - 13 + 169 = \mathbf{157} \] which matches. The other three do not balance under the same substitutions.

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