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The difference between a two-digit number and the number obtained by interchanging its two digits is 36. What is the difference between the two digits of the number?

Competition practiceNumber System, HCF & LCM
  • A4
  • B6
  • C3
  • D5

Step-by-Step Solution

For any two-digit number, the difference from its reverse = (difference of the digits) = 36, so the difference of the digits = 4.
Answer: A) 4

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