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Q: If the nine-digit number 23541y49x is divisible by 72, then (3x + 5y) : (5x + 3y) is equal to:
  • A. 3 : 4
  • B. 7 : 9
  • C. 9 : 7
  • D. 4 : 3
Correct Answer: Option B -
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Explanations:

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